Structural Engineering, +4
Construction
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Construction
8 min read
Areas of Expertise :
Construction, Construction Safety, Geotechnical Engineering, Excavators, Occupational Safety And Health (OSHA)

Published Date:
Last Modified Date:
Jurisdiction:
Connecticut State
On July 22, 2022, Dennis Slater, a Botticello Inc. worker, was killed when an eight-foot-deep trench collapsed at a job site in Vernon, Connecticut. According to OSHA’s findings, earlier trench collapses had occurred that same day, yet cave-in protection, such as a trench box, was not in use, and workers did not have safe egress from the trench. OSHA cited Botticello Inc. for willful excavation safety violations and initially proposed $375,021 in penalties, later reduced to $190,000. The agency found that required trench safety measures had not been provided before the fatal collapse.
Legal proceedings followed in Rockville Superior Court in the Tolland Judicial District. Dennis Botticello, the company owner, and Glen Locke, the equipment operator, were initially charged with first-degree manslaughter and first-degree reckless endangerment. On April 4, 2025, both pleaded guilty to second-degree manslaughter. On May 16, 2025, they were sentenced to two years of probation and did not receive prison time. The court also required them to create a tribute in Slater’s memory, such as a scholarship or youth program. The sentencing decision took into account their remorse, lack of prior arrests, and the support of Slater’s widow, who asked the court for leniency. The case demonstrates how ignored excavation safety requirements can lead to fatal consequences, OSHA enforcement, and serious legal accountability.
Dennis Slater, a 56-year-old Botticello Inc. worker, was killed when an eight-foot trench caved in at a residential job site on Bolton Branch Road in Vernon, Connecticut. Reports stated that the trench had already collapsed at least once earlier that day, but corrective safety measures were not put in place before work continued. Slater was buried in the collapse, freed by responders and workers, transported to Manchester Memorial Hospital, and later pronounced dead. The trench lacked required cave-in protection, such as a trench box, and workers did not have safe egress from the excavation, in violation of federal excavation safety rules.
After investigating the Vernon trench collapse, the Occupational Safety and Health Administration issued citations to Botticello Inc. on January 19, 2023. OSHA proposed $375,021 in penalties for willful trench safety violations and later announced its findings publicly on January 30, 2023. The agency found that the company failed to provide required cave-in protection and safe access for workers inside the trench. After a formal settlement, the penalty amount was reduced to $190,000.
Following investigations by OSHA and the Vernon Police Department, Dennis Botticello and Glen Locke were arrested and charged with first-degree manslaughter and first-degree reckless endangerment in connection with Dennis Slater’s death. Prosecutors alleged that the failure to use basic trench safety measures led to the fatal collapse. Both men were released on $50,000 bond, and the case proceeded in Rockville Superior Court, part of the Tolland Judicial District. The charges made the Vernon trench fatality a notable example of a workplace safety case that moved beyond agency enforcement into felony prosecution.
Dennis Botticello and Glen Locke pleaded guilty to second-degree manslaughter in Rockville Superior Court. The pleas resolved the prosecution before trial and moved the case toward sentencing. Although the plea agreements allowed for up to five years of incarceration, the final sentencing decision remained with the court.
Botticello and Locke were sentenced to two years of probation. The judge cited several mitigating factors, including their lack of prior arrests, their expressions of sincere remorse, and the support of Slater’s widow, who opposed jail time. The court also imposed a condition requiring the defendants to establish a tribute in Slater’s memory, such as a scholarship or youth initiative.
Court:
Connecticut Superior Court, Judicial District of Tolland
Case Name:
State of Connecticut v. Dennis Botticello and Glen Locke
Dennis Slater was killed in 2022 when an eight-foot trench collapsed at a Vernon, Connecticut construction site.
OSHA found that required cave-in protection and safe egress were missing, even though the trench had reportedly collapsed earlier that day.
Botticello Inc. was cited for willful trench safety violations, with penalties ultimately reduced to $190,000.
Company owner Dennis Botticello and equipment operator Glen Locke pleaded guilty to second-degree manslaughter and received two years of probation.
Occupational safety, construction accident, geotechnical engineering, and pathology expertise may be relevant in similar trench-collapse cases.
Trench Construction
Construction Accidents
Occupational Safety and Health OSHA Industrial Engineering
Worker Safety
Soil Engineering
On July 22, 2022, Dennis Slater, a Botticello Inc. worker, was killed when an eight-foot-deep trench collapsed at a job site in Vernon, Connecticut. According to OSHA’s findings, earlier trench collapses had occurred that same day, yet cave-in protection, such as a trench box, was not in use, and workers did not have safe egress from the trench. OSHA cited Botticello Inc. for willful excavation safety violations and initially proposed $375,021 in penalties, later reduced to $190,000. The agency found that required trench safety measures had not been provided before the fatal collapse.
Legal proceedings followed in Rockville Superior Court in the Tolland Judicial District. Dennis Botticello, the company owner, and Glen Locke, the equipment operator, were initially charged with first-degree manslaughter and first-degree reckless endangerment. On April 4, 2025, both pleaded guilty to second-degree manslaughter. On May 16, 2025, they were sentenced to two years of probation and did not receive prison time. The court also required them to create a tribute in Slater’s memory, such as a scholarship or youth program. The sentencing decision took into account their remorse, lack of prior arrests, and the support of Slater’s widow, who asked the court for leniency. The case demonstrates how ignored excavation safety requirements can lead to fatal consequences, OSHA enforcement, and serious legal accountability.
Dennis Slater, a 56-year-old Botticello Inc. worker, was killed when an eight-foot trench caved in at a residential job site on Bolton Branch Road in Vernon, Connecticut. Reports stated that the trench had already collapsed at least once earlier that day, but corrective safety measures were not put in place before work continued. Slater was buried in the collapse, freed by responders and workers, transported to Manchester Memorial Hospital, and later pronounced dead. The trench lacked required cave-in protection, such as a trench box, and workers did not have safe egress from the excavation, in violation of federal excavation safety rules.
After investigating the Vernon trench collapse, the Occupational Safety and Health Administration issued citations to Botticello Inc. on January 19, 2023. OSHA proposed $375,021 in penalties for willful trench safety violations and later announced its findings publicly on January 30, 2023. The agency found that the company failed to provide required cave-in protection and safe access for workers inside the trench. After a formal settlement, the penalty amount was reduced to $190,000.
Following investigations by OSHA and the Vernon Police Department, Dennis Botticello and Glen Locke were arrested and charged with first-degree manslaughter and first-degree reckless endangerment in connection with Dennis Slater’s death. Prosecutors alleged that the failure to use basic trench safety measures led to the fatal collapse. Both men were released on $50,000 bond, and the case proceeded in Rockville Superior Court, part of the Tolland Judicial District. The charges made the Vernon trench fatality a notable example of a workplace safety case that moved beyond agency enforcement into felony prosecution.
Dennis Botticello and Glen Locke pleaded guilty to second-degree manslaughter in Rockville Superior Court. The pleas resolved the prosecution before trial and moved the case toward sentencing. Although the plea agreements allowed for up to five years of incarceration, the final sentencing decision remained with the court.
Botticello and Locke were sentenced to two years of probation. The judge cited several mitigating factors, including their lack of prior arrests, their expressions of sincere remorse, and the support of Slater’s widow, who opposed jail time. The court also imposed a condition requiring the defendants to establish a tribute in Slater’s memory, such as a scholarship or youth initiative.
Occupational Safety and Health Expert Witness
An occupational safety and health expert is often engaged in trench-collapse cases to evaluate whether excavation practices complied with OSHA trenching and excavation standards. This review may include site photographs, inspection records, safety plans, witness statements, trench depth, egress access, and the use or absence of protective systems such as trench boxes, shoring, or sloping. The analysis can explain applicable safety requirements, departures from accepted construction safety practices, and how those conditions relate to worksite risk and injury causation.
Construction Accidents Expert Witness
A construction accident expert may be involved in excavation cases to evaluate causation, worksite conditions, and safety-rule compliance. The review may address the sequence of events, employer safety practices, OSHA requirements, and whether required trench protections were in place before the collapse. This analysis can clarify whether accepted construction safety precautions were followed and how safety failures may have contributed to the incident.
Geotechnical Engineering Expert Witness
A geotechnical engineering expert is often engaged to analyze soil stability, trench depth, slope conditions, and other ground-failure factors that may contribute to a trench collapse. In excavation cases, this expert may assess whether soil conditions made the collapse foreseeable and whether added protective measures were required. These findings can explain the technical causes of a collapse and the safety steps that could have reduced the risk.
Pathology Expert Witness
A pathology expert may be consulted in fatal trench-collapse cases to evaluate injury mechanisms, including blunt-impact trauma, compression injuries, and asphyxia-related findings when relevant. The review may include medical records, autopsy findings, emergency response records, and death-certificate information. This analysis can explain the medical cause of death and how the collapse caused or contributed to the fatal injuries.
Connect Causation to OSHA Findings
OSHA’s citations provided key evidence of hazard recognition, safety-rule violations, and preventability. In trench-collapse cases, regulatory findings can help connect missing protections, such as cave-in protection or safe egress, to the injury or death. When paired with qualified expert analysis, OSHA records can help explain how the worksite conditions created a foreseeable risk.
Use Prior Site Incidents to Establish Notice
The reported earlier trench collapse on the same day was a central fact because it suggested that the hazard was known before the fatal collapse occurred. Repeated safety failures can support arguments involving notice, negligence, gross negligence, or recklessness. Witness accounts, employer records, inspection materials, and incident documentation may be critical in showing what was known before work continued.
Review How Prosecution Records May Affect Civil Claims
State prosecutors initially brought first-degree manslaughter and first-degree reckless endangerment charges against Dennis Botticello and Glen Locke. The case later resolved when both defendants pleaded guilty to second-degree manslaughter. In related civil claims, OSHA findings, plea outcomes, agency records, and court filings may help clarify the factual record surrounding responsibility, causation, and damages.
Treat OSHA Findings as One Part of the Liability Analysis
OSHA citations, inspection findings, and safety-rule violations can provide strong support in construction fatality litigation, but they should be reviewed carefully. Agency findings should be distinguished from investigator testimony, retained expert analysis, and other case-specific evidence. Early review of OSHA records can help identify which safety duties applied, what protections were missing, and how those failures relate to causation and liability.
Consider Victim-Centered Remedies in Sentencing or Settlement
The court required Botticello and Locke to establish a tribute in Dennis Slater’s memory, such as a scholarship or youth initiative. That condition reflected a nontraditional remedy tied directly to the victim and his family. In appropriate cases, community-based resolutions may provide a meaningful form of accountability while also respecting the wishes of the victim’s family and the court’s sentencing considerations.
The Vernon trench collapse case ended with OSHA enforcement, police investigation, manslaughter pleas, and probation sentences for Dennis Botticello and Glen Locke after the July 22, 2022 death of Botticello Inc. worker Dennis Slater. OSHA cited the company for willful excavation safety violations after finding that required cave-in protection and safe egress were not provided in the eight-foot trench, even though an earlier collapse had reportedly occurred that same day. The prosecution in Rockville Superior Court later resolved when both defendants pleaded guilty to second-degree manslaughter, and the court ordered two years of probation along with a tribute in Slater’s memory, such as a scholarship or youth initiative. For construction accident litigation, the case shows how trench conditions, OSHA findings, site-safety decisions, prior warning signs, and causation evidence can become central to the legal record after a fatal excavation collapse.
What safety failures were identified after the Vernon trench collapse?
OSHA found that required cave-in protection, such as a trench box, was not in use at the eight-foot trench. OSHA also found that workers lacked safe egress from the excavation. Reports that the trench had collapsed earlier the same day supported the finding that the hazard was known before work continued.
Who was held legally responsible for the Vernon construction fatality?
Dennis Botticello, the owner of Botticello Inc., and equipment operator Glen Locke were initially charged with first-degree manslaughter and first-degree reckless endangerment. On April 4, 2025, both pleaded guilty to second-degree manslaughter. On May 16, 2025, they were sentenced to two years of probation and were ordered to create a tribute in memory of Dennis Slater.
Did OSHA investigate the Vernon trench collapse?
Yes. OSHA investigated the Vernon trench collapse and cited Botticello Inc. for willful trench safety violations. The agency proposed $375,021 in penalties, later reduced to $190,000 after a formal settlement.
Why did the earlier trench collapse matter in the Vernon case?
Reports that the trench had collapsed earlier the same day helped show that the danger was known before Dennis Slater was killed. That fact supported arguments that corrective safety measures should have been taken before work continued. In trench-fatality cases, prior site incidents may serve as evidence of notice, foreseeability, and preventability.
What can construction accident attorneys take from the Vernon trench collapse case?
The Vernon case shows how OSHA findings, prior site incidents, plea outcomes, and worksite safety records can affect construction accident litigation. Attorneys may need to evaluate trench conditions, missing protective systems, employer safety practices, and causation evidence in both civil claims and state prosecution records. The case also shows how sentencing may include victim-centered remedies, such as the tribute ordered in Dennis Slater’s memory.
Occupational Safety and Health Expert Witness
An occupational safety and health expert is often engaged in trench-collapse cases to evaluate whether excavation practices complied with OSHA trenching and excavation standards. This review may include site photographs, inspection records, safety plans, witness statements, trench depth, egress access, and the use or absence of protective systems such as trench boxes, shoring, or sloping. The analysis can explain applicable safety requirements, departures from accepted construction safety practices, and how those conditions relate to worksite risk and injury causation.
Construction Accidents Expert Witness
A construction accident expert may be involved in excavation cases to evaluate causation, worksite conditions, and safety-rule compliance. The review may address the sequence of events, employer safety practices, OSHA requirements, and whether required trench protections were in place before the collapse. This analysis can clarify whether accepted construction safety precautions were followed and how safety failures may have contributed to the incident.
Geotechnical Engineering Expert Witness
A geotechnical engineering expert is often engaged to analyze soil stability, trench depth, slope conditions, and other ground-failure factors that may contribute to a trench collapse. In excavation cases, this expert may assess whether soil conditions made the collapse foreseeable and whether added protective measures were required. These findings can explain the technical causes of a collapse and the safety steps that could have reduced the risk.
Pathology Expert Witness
A pathology expert may be consulted in fatal trench-collapse cases to evaluate injury mechanisms, including blunt-impact trauma, compression injuries, and asphyxia-related findings when relevant. The review may include medical records, autopsy findings, emergency response records, and death-certificate information. This analysis can explain the medical cause of death and how the collapse caused or contributed to the fatal injuries.
Connect Causation to OSHA Findings
OSHA’s citations provided key evidence of hazard recognition, safety-rule violations, and preventability. In trench-collapse cases, regulatory findings can help connect missing protections, such as cave-in protection or safe egress, to the injury or death. When paired with qualified expert analysis, OSHA records can help explain how the worksite conditions created a foreseeable risk.
Use Prior Site Incidents to Establish Notice
The reported earlier trench collapse on the same day was a central fact because it suggested that the hazard was known before the fatal collapse occurred. Repeated safety failures can support arguments involving notice, negligence, gross negligence, or recklessness. Witness accounts, employer records, inspection materials, and incident documentation may be critical in showing what was known before work continued.
Review How Prosecution Records May Affect Civil Claims
State prosecutors initially brought first-degree manslaughter and first-degree reckless endangerment charges against Dennis Botticello and Glen Locke. The case later resolved when both defendants pleaded guilty to second-degree manslaughter. In related civil claims, OSHA findings, plea outcomes, agency records, and court filings may help clarify the factual record surrounding responsibility, causation, and damages.
Treat OSHA Findings as One Part of the Liability Analysis
OSHA citations, inspection findings, and safety-rule violations can provide strong support in construction fatality litigation, but they should be reviewed carefully. Agency findings should be distinguished from investigator testimony, retained expert analysis, and other case-specific evidence. Early review of OSHA records can help identify which safety duties applied, what protections were missing, and how those failures relate to causation and liability.
Consider Victim-Centered Remedies in Sentencing or Settlement
The court required Botticello and Locke to establish a tribute in Dennis Slater’s memory, such as a scholarship or youth initiative. That condition reflected a nontraditional remedy tied directly to the victim and his family. In appropriate cases, community-based resolutions may provide a meaningful form of accountability while also respecting the wishes of the victim’s family and the court’s sentencing considerations.
The Vernon trench collapse case ended with OSHA enforcement, police investigation, manslaughter pleas, and probation sentences for Dennis Botticello and Glen Locke after the July 22, 2022 death of Botticello Inc. worker Dennis Slater. OSHA cited the company for willful excavation safety violations after finding that required cave-in protection and safe egress were not provided in the eight-foot trench, even though an earlier collapse had reportedly occurred that same day. The prosecution in Rockville Superior Court later resolved when both defendants pleaded guilty to second-degree manslaughter, and the court ordered two years of probation along with a tribute in Slater’s memory, such as a scholarship or youth initiative. For construction accident litigation, the case shows how trench conditions, OSHA findings, site-safety decisions, prior warning signs, and causation evidence can become central to the legal record after a fatal excavation collapse.
What safety failures were identified after the Vernon trench collapse?
OSHA found that required cave-in protection, such as a trench box, was not in use at the eight-foot trench. OSHA also found that workers lacked safe egress from the excavation. Reports that the trench had collapsed earlier the same day supported the finding that the hazard was known before work continued.
Who was held legally responsible for the Vernon construction fatality?
Dennis Botticello, the owner of Botticello Inc., and equipment operator Glen Locke were initially charged with first-degree manslaughter and first-degree reckless endangerment. On April 4, 2025, both pleaded guilty to second-degree manslaughter. On May 16, 2025, they were sentenced to two years of probation and were ordered to create a tribute in memory of Dennis Slater.
Did OSHA investigate the Vernon trench collapse?
Yes. OSHA investigated the Vernon trench collapse and cited Botticello Inc. for willful trench safety violations. The agency proposed $375,021 in penalties, later reduced to $190,000 after a formal settlement.
Why did the earlier trench collapse matter in the Vernon case?
Reports that the trench had collapsed earlier the same day helped show that the danger was known before Dennis Slater was killed. That fact supported arguments that corrective safety measures should have been taken before work continued. In trench-fatality cases, prior site incidents may serve as evidence of notice, foreseeability, and preventability.
What can construction accident attorneys take from the Vernon trench collapse case?
The Vernon case shows how OSHA findings, prior site incidents, plea outcomes, and worksite safety records can affect construction accident litigation. Attorneys may need to evaluate trench conditions, missing protective systems, employer safety practices, and causation evidence in both civil claims and state prosecution records. The case also shows how sentencing may include victim-centered remedies, such as the tribute ordered in Dennis Slater’s memory.
What sentence did Dennis Botticello and Glen Locke receive?
On May 16, 2025, Dennis Botticello and Glen Locke were sentenced to two years of probation after pleading guilty to second-degree manslaughter. The court did not impose prison time. As part of sentencing, they were ordered to create a tribute in Dennis Slater’s memory, such as a scholarship or youth initiative.
Geotechnical Engineering, +4
Construction
Industrial Hygiene, +7
Construction
What sentence did Dennis Botticello and Glen Locke receive?
On May 16, 2025, Dennis Botticello and Glen Locke were sentenced to two years of probation after pleading guilty to second-degree manslaughter. The court did not impose prison time. As part of sentencing, they were ordered to create a tribute in Dennis Slater’s memory, such as a scholarship or youth initiative.