STOCKTON, Calif. (AP) — An 88-year-old woman was fatally shot in an upscale California senior home and her two nieces were slain in an apparent triple murder that ended when the suspected gunman was found dead, police said.
Investigators suspect Colin McGrattan, 45, killed his ex-wife, Jackie Arata, 57; her sister, Kathleen Arata, 64; and the women's aunt, Chizuko Kenishi, before shooting himself Monday at O'Connor Woods Senior Living center in Stockton.
Investigators said they were looking into whether a financial disagreement prompted the violence.
The deaths brought to nine the number of people killed in a 51-hour period in Stockton, an agricultural city in Northern California.
Police investigating Monday's triple murder said they initially found Kathleen Arata shot to death at her home near the University of the Pacific.
A minivan spotted leaving the scene was located minutes later at the senior home, where police found the bodies of Kenishi and McGrattan inside a room. Scot Sinclair, the senior home's executive director said Tuesday that another resident discovered the bodies after she saw Kenishi's door ajar and told staff who then called 911.
"We are looking at the aspect of did (McGrattan) take his own life?" police spokesman Joe Silva said Monday.