The judge is expected to find Yao not guilty based on his lack of criminal responsibility due to his severe mental illness and send Yao to Bridgewater State Hospital, the defense said. He will remain at this hospital potentially for the rest of his life, unless he is found to be rid of his mental illness and he no longer presents a danger to anyone in the community, Carney said.
A Middlesex County Grand Jury indicted Yao on Sept. 21, 2018. He faces charges of murder, armed assault with intent to murder a person over 60 and assault and battery with a dangerous weapon on a person over 60.