Jick Magger
Arcane
Disregard anything I said about the events of Deathwish, got really confused there. Still leaves the question, why are the bodies of Mark and Corey in Tonys room? Did he bring them there? Really doesnt make sense to me.
Corey's fight with The Son Occurs in an elevator. If you look at her corpse later it's got a stomach wound, which isn't necessarily immediately fatal. Mark's corpse has its head bashed in (when The Son beat 'him' by hitting him with a golf club), which means he was probably dead as a doornail when they found him in the lobby near the elevator. Tony probably ran after he lost his fight with The Son (though it never seems to be effective in a fight, he does appear to wear some form of body armor on his chest, maybe he just got lucky) found Corey dying in the elevator, went down and picked up Mark's body (probably at Corey's insistence), and then got cornered in the elevator by the police, during which Corey finally expired from her gunshot wound.