At Tuesday's press conference, officials said the officers both fired seven shots each. The officers, who have not been named, were wearing body cameras and did not carry stun guns.
Meanwhile, Mr Wallace's family lawyer said that they had called for an ambulance - not police - to help deal with Walter Wallace's mental issues.
Instead, two police officers arrived, lawyer Shaka Johnson was quoted as saying by the Inquirer. Mr Wallace's pregnant wife told them her husband had bipolar disorder and was in crisis.