William David Raff, 31, of Palo Alto, California, died on December 25, 2015, after a confrontation with police at his mental health home. Raff, who had been diagnosed with schizophrenia, called 911 that night reporting a violent emergency. Officers arriving found him armed with a kitchen knife; after repeated commands to drop the weapon, Raff charged at the officers and they opened fire. The encounter lasted 19 seconds and was recorded on multiple audio and video systems.

The Santa Clara County District Attorney’s Office investigated and concluded the officers involved, Nicolas Enberg and Zachary Wicht, lawfully used deadly force, finding Raff had intended to provoke a lethal response from police. The officers were placed on paid administrative leave after the shooting and later returned to duty. Raff’s family questioned whether less-lethal options could have been used given his mental-health condition.

Does anyone have information about Raff’s care, the response that night, or how police and mental-health services worked together in that community?