Marcus ♥ With Helena gone, Marcus is going to be surlier and even more nihilistic than usual.
♥ The above might make certain people think he's turned violent, so he could well be a suspect in murder plot, which would make him angrier and prone to lashing out. Loudly.
♥ For his part, he'll probably think Brandon did it. Or at least be loud about that possibility.
♥ Interaction is gold, as far as I'm concerned. I'm up for throwing Marcus at anybody!