Season 2: About Last Night

Sam got onto a private elevator with a few other guests wearing pins and
approaches one of the members, ANDREW MARTIN (Steve Valentine). Sam confronts
him about the clinical trials they did on children and Andrew just smiles until
he realizes Sam isn’t who he says he is. Before he can react, Sam injects him
with the Beast-serum. Andrew turns out to be beast inclined so he transforms.
Sam orders
him to kill everyone at the meeting.