According to a spoilerish Esposito interview he places himself in episode 12 with a climactic confrontation with MIKE , via a flashback

Could be shown in a flash back…

new drug weighing procedure, 'youll never see him again', drinking at the bar/depressed, blood on his sleeve, Mike being INSIDE gus's house since the street was empty…

Trust me, Mikes already killed him. Was plenty of clues pointing it out

Everyone had changed clothing, aka time had passed. How could it have been Victor's blood 24 hours later , Russell

Mike has already killed gus. Obviously
Why has no one cottoned onto the fact that Mike has already killed Gus, The blood on his arm in the 2nd scene when Mike was eating, He made a power move and offed Gus knowing it had to be done for his own safety. Then Mike calling Walter as he was approaching gus's house. The…