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Gresham mom insane, but guilty of murder

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Dianne Davidoff shot, killed son in September 2015 in Gresham.

KOIN PHOTO - Dianne Davidoff is shown here at her first court appearance following the shooting death of her son, Jacob. Davidoff was found guilty of Jacob's murder.Dianne Davidoff, the Gresham mom who shot and killed her teenage son in 2015, was found guilty Friday, Feb. 3, of all charges, but was found to be insane at the time the crimes were committed.

Davidoff was convicted of one count of murder with a firearm and one count of unlawful use of a weapon.

CONTRIBUTED PHOTO - Jacob Davidoff, 17, is shown here in this family photograph.Multnomah County Circuit Judge Julie Frantz placed Davidoff under the jurisdiction of the state Psychiatric Security Review Board. She will be sent to the Oregon State Hospital for treatment, with a chance of someday being released.

On Sept. 24, 2015, Davidoff shot and killed her 17-year-old son Jacob. At the time, the two were in the process of moving out of their house in the 2800 block of Southeast Rosefinch Drive to live with Davidoff's parents a few homes away.

Davidoff's mother called 911 and said her daughter had "accidentally" shot her grandson. Police arrived to find Jacob lying in the doorway of his bedroom, and was pronounced dead at the scene. He was shot through the heart with a .38 caliber Ruger revolver.

Relatives told investigators Davidoff's mental state had deteriorated in the weeks leading up to the shooting. In October 2015, she was found unfit for trail and was ordered to undergo a mental health evaluation.

KOIN 6 News reports contributed to this story.