A Thousand Oaks nursing home resident was arrested on suspicion of killing his roommate, the Ventura County Sheriff’s Office said.

Deputies responded at 4:40 a.m. Friday to a call from the Silverado Memory Care Center on Warwick Avenue about a resident who was agitated and had broken a window, according to the Sheriff’s Department. press release.

Officers found resident Thomas Buckley, 58, in a common area of ​​the facility and detained him, authorities said. Nursing home staff then checked on his roommate, 72-year-old Michael Patterson. Workers discovered that Patterson had serious injuries, which appeared to be caused by an assault.

Paramedics were called to the scene and Patterson was pronounced dead a short time later, authorities said.

Investigators said that before officers arrived, Buckley had assaulted one of the facility workers, causing minor injuries.

Patterson’s death is being investigated as a homicide. The Ventura County Medical Examiner’s Office will conduct an autopsy to determine the official cause and manner of death.

Buckley was booked on suspicion of murder, assault with a deadly weapon and vandalism, the Sheriff’s Department said. He remains in custody and his bail was set at $2 million. His arraignment hearing is scheduled for Tuesday at 1:30 pm in Ventura County Superior Court.

Anyone with information regarding this incident is asked to contact Det. Gerardo Cruz at (805) 384-4726 or Det. Erik Hernandez at (805) 384-4729.