Wicked Local
Jeffrey Yao, the man who admitted he fatally stabbed a medical student 20 times with a hunting knife in 2018, was found not guilty Wednesday by lack of criminal responsibility because of his mental illness.
According to a press release from Middlesex District Attorney Marian Ryan's office, Yao, 27, of Winchester, was found not guilty by reason of lack of criminal responsibility of the murder of Deanne Stryker and of the attack on the man who tried to stop his rampage at the Winchester Library. .
Judge Kathe Tuttman ordered Yao to be civilly committed to Bridgewater State Hospital. The ruling came during a bench trial after the defendant waived his right to a jury trial.