Why didn’t he just open the door and finish the job at close range with a single round?
Because the shooter was not the patsy SCP? And so the shooter did not want to show his face?
LOL SCP patsy conjecture makes lots of this easy. So why does LV LE continue banging its head against doctored timelines and lack of motive for SCP?
“Why didn’t he just open the door and finish the job at close range with a single round?”
Because he had screwed it shut.