WARNING: GRAPHIC HD AHMAUD ARBERY SHOOTING W BACKUP 911 CALL AUDIO

We layered the audio of the 911 call with the video from William Bryan's phone. Do you hear more than 3 gunshots? Was he executed as he ran away? Greg McMichael puts down his phone at 13:14:26. How did Greg McMichael then speak into the phone and say 'hello' at 13:14:28 when he clearly put his phone down?