APNewsBreak: Authorities have video of murder suspect killing detective inside Miss. police HQ

A person with knowledge of the investigation of a police officer who was killed by a murder suspect in an interrogation room says the shooting was recorded on video.

The person spoke to The Associated Press on Saturday on the condition of anonymity because they were not authorized to talk about the ongoing investigation. The person also said the suspect, Jeremy Powell, was not handcuffed during the questioning.

The Mississippi Bureau of Investigation says Powell overpowered Det. Eric Smith on Thursday and took his gun. Authorities say Powell shot the veteran detective four times before killing himself.

The AP has asked for the video to be released under open records laws, but authorities have not done so, saying it's part of their investigation.