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The original item was published from 3/4/2021 3:37:00 PM to 3/5/2022 12:00:01 AM.

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District Attorney

Posted on: March 4, 2021

[ARCHIVED] News Release: Owner of Amazon’s Landscaping Company Charged with 2 Felonies for Death of Employee



Contact: Scott Alonso, 925-957-8638

[email protected] 

Owner of Concord-Based Amazon’s Landscaping Company Charged with 2 Felonies for Death of Employee

            Martinez, Calif. – Earlier this week, the Contra Costa County District Attorney’s Office filed a felony complaint against Segundo Collazos, the owner of Amazon’s Landscaping Company based out of Concord.

The charges relate to the 2018 death of Manuel Peralta, then 68, of Antioch, California, who died while operating a rented tree stump grinder in San Ramon. At the time of the incident, defendant Segundo Collazos had a suspended license with the Contractors State License Board. The investigation began from the California Department of Industrial Relations’ Division of Occupational Safety & Health Bureau of Investigations. 

The first felony alleges that defendant Collazos permitted the victim Manuel Peralta to use a stump grinder in a manner contrary to manufacturer recommendations and to work in the danger zone of the cutting wheel, resulting in his death. The second felony alleges that Collazos failed to properly train Peralta on the proper and safe use of the stump grinder, also resulting in his death.  

The District Attorney’s Office reminds homeowners to check that a contractor is currently licensed and insured before hiring them for residential construction work. Homeowners can check the validity of a license number on the Contractors’ State Licensing Board website at: or call (800) 321-CSLB (2752). 

“When a Cal/OSHA investigation reveals evidence a worker’s serious injury or death involves criminal misconduct, our Bureau of Investigations Unit refers those cases to the local District Attorney’s Office for prosecution,” said Cal/OSHA Chief Doug Parker. “We thank the Contra Costa County District Attorney for their work on this case. Employers must be made aware that disregarding the requirement to train and supervise workers using dangerous equipment can lead to tragedy and possible jail time.”

Deputy District Attorney Ryan Morris is prosecuting the case on behalf of the People. DDA Morris is assigned to our Office’s Special Operations Division. 

Case information: People v. Segundo Collazos, Docket Number 01-195521-0. 



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