PETROLIA, Calif. (AP) — A weeklong search for a Shasta County man suspected of killing his wife and two young daughters is being scaled back. Humboldt County Sheriff Mike Downey said at a community meeting Wednesday that Shane Miller has most likely killed himself or left the area. According to the Times-Standard of Eureka, Downey said the Sheriff's Office and other local agencies will remain in the area for the next week. But outside law enforcement agencies are leaving. Investigators were searching for Miller in the Petrolia area of the county. His family was discovered slain on May 7 at their home about 200 miles away, but investigators found Miller's abandoned pickup truck the next day near Petrolia. They say he contacted a woman he had previously had a relationship with there.