the officers said they thought he had a gun. but after firing 20 shots, they discovered it was actually a cell phone. he approached us hands out and then fell down. reporter: now a doctor commissioned by clark s family to perform the autopsy is offering a different account. he was hit eight times, first the left side from his armpit, spinning him around before he was shot six more times from behind and once in the thigh. the findings of his autopsy contradict many of the narratives that the sacramento police put forward. reporter: the autopsy was performed by dr. bennett omali who is credited with discovering the brain disease cte. he had seven gunshot wounds to the back. reporter: he died three to ten minutes later. it was not instantaneous death. reporter: now, questions continue to swirl as the outrage