In the video, officers can be heard negotiating with Burks, who is alleged to have been armed with an 8-inch blade knife, ordering him to put it down and offering to get him some help."You're not in any trouble, just drop the knife and we'll get you some help," the officer said in the video.Detroit Police executive team director Christopher Graveline said there were numerous officers at the scene Sunday where Burks was killed, but only five had fired their weapons.Burks was diagnosed with schizophrenia three years prior and was having a mental episode, according to his brother Damondo Anderson, who called the police for help.Police were aware of Burks' mental health condition, according to Graveline."