“A lawyer for the family of Mr. Walker said the footage shows that he was running away, unarmed, when police officers fired at him more than 90 times. The lawyer, Bobby DiCello, reviewed footage of the shooting on Thursday. His legal team also visited the medical examiner’s office on Friday and reviewed the autopsy, which has not been finalized. Mr. DiCello said it showed that Mr. Walker had been struck at least 60 times.”