The dead officer has been identified as Floyd East Jr. The suspect was not handcuffed at the time of the shooting and he apparently did not use the officer’s gun.
Warrant: Accused shooter confesses to killing Texas Tech officer

A secondary officer said East was completing paperwork at a computer in a briefing room as Daniels reportedly faced the opposite direction of East, slightly offset from one another.

The secondary officer reportedly left the room when he heard a “loud bang.” When he returned to the briefing room, East had been mortally wounded, with an apparent gunshot wound.

“A .45-caliber RP shell casing was located near Officer East,” the report states. “(The secondary officer on scene) also advised Officer East’s police body camera was missing and Officer East’s pistol was in his holster.”

Daniels had not been handcuffed.