70-Year-Old Convicted Child Molester Found Dead in San Quentin Cell; Cellmate Suspected

Mark Squires, serving life for child molestation, was discovered unresponsive in his cell; Gustavo Lopez, convicted kidnapper, is under investigation.

• Mark Squires, 70, was found unresponsive in his San Quentin cell on Tuesday afternoon and later pronounced dead.
• The death is being investigated as a homicide, with Squires' cellmate, 36-year-old Gustavo Lopez, as the primary suspect.
• Squires was serving a life sentence without parole for sexually abusing a child under 14 in Riverside County and had been incarcerated since 2000.
• Lopez, convicted of kidnapping and other violent crimes, has been placed in restricted housing pending an investigation by prison officials and the Marin County District Attorney’s Office.
• This incident follows a similar case in April where another inmate was killed by his cellmate, raising concerns about safety at the facility.

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