To Derek, this was kind of a relief. What might have been disturbing, made him feel a little better about another him being back at home. That meant someone was still watching out for his sisters, the BAU team, his mom... And someone was still doing what he'd left in the middle of doing.
"Long as there's still a chance for me to get that son of a bitch Ian Doyle and put him away for good." Avenging Emily's death? Yeah, that was on the top of his priority list when he'd been brought here. He'd been deeply involved in it as a matter of fact, somewhat secretly.
At the mention of Ian Doyle, his punches get harder, muscles straining and his brow furrowed until he steps back. "Alright. You try it."