Jeffrey Yao, the Winchester man charged in the 2018 fatal stabbing of a 22-year-old woman and assault of a man who tried to help her, was found not guilty after three medical experts determined he ...
Jeffrey Y. Yao was found not guilty by reason of insanity in Middlesex Superior Court Wednesday for stabbing Deane Stryker 20 times and slashing a 77-year-old man who tried to rescue her during a ...