Thanks - it adds another detail that may have been missed in the articles. Police were following up on a report about a knife in his pocket.
“A convenience store owner called 911 on Tuesday when he suspected Powell stole drinks and donuts from his shop, according to a recording of the call. Another woman called to report Powell was acting erratically and had a knife in his pocket.”
if you blow up the video to full screen, at mark 1:31 you can justbarely see the knife in the right hand