Sheriff: Sudden Valley man suspected of killing stepfather


SUDDEN VALLEY - A man suspected of killing his 60-year-old stepfather at a home in the Sudden Valley area has been arrested on Whidbey Island, the Whatcom County sheriff said Wednesday, Jan. 22.

Deputies responded to 69 Lake Louise Drive at 6:13 p.m. Tuesday when a 25-year-old man reported his father shot himself. The father, identified by authorities as Steven Roy Siebert, died from shotgun wounds to the chest, according to the Whatcom County medical examiner.

His death is now being investigated as a homicide, said Sheriff Bill Elfo.

Detectives believe Siebert's stepson, Joshua Aaron Adams, 41, fled the scene in the victim's Subaru. Because of a miscommunication, an earlier report stated another son was involved in the killing and remained at large. That's not the case, Elfo said.

About four hours after the shooting, Adams arrived at a gas station on Highway 20, where he left the Subaru and stole a black Ford F-150, according to law enforcement. A sheriff's deputy patrolling Whidbey Island spotted the truck at 11 p.m. on Highway 20 near Coupeville, said Island County Undersheriff Kelly Mauck.

A 15-minute, high-speed chase ended after spike strips took out the pickup's tires near Freeland. Adams kept driving on deflated tires, but eventually gave up. A stolen handgun and a dog were found in the car, Mauck said. (The dog was handed over to animal control.)

Deputies booked Adams into Island County Jail on suspicion of possessing a stolen vehicle, possessing a stolen firearm and being a felon in possession of a firearm.

Adams lived at 35 Marigold Drive, about a 10-minute walk from Siebert's house.

Siebert, who moved here from California a few years ago, had an appliance business listed at his home.

Whatcom County prosecutors will decide if Adams faces a charge of murder. He was booked into Whatcom County Jail at about 4:45 p.m. Wednesday on suspicion of second-degree murder and possession of a stolen vehicle.

A motive for the shooting has not been made public.

Reach Caleb Hutton at 360-715-2276 or Read his Dispatcher Blog at or follow him on Twitter at @bhamcrime.

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