MEMPHIS, Tenn. (AP) — One of three Memphis Police officers who initially detained Tyre Nichols last month has admitted he did not witness the alleged reckless driving that was the justification for pulling over Nichols but still approached his car while brandishing his gun, according to police documents seeking to bar him from working in law enforcement.

That Jan. 7 traffic stop quickly escalated into a beating, and Nichols died three days later.

Officer Preston Hemphill's own body camera showed that from the very beginning of the traffic stop he and two other officers approached Nichols with...