'Dexter' Season 6: The best, worst and most random

Intern Louis Greene (Josh Cooke) may have an impressive cardigan collection, but what's he really up to? Sending the ice truck killer's hand to Dexter and developing a homicide video game? Odd. We're also confused by him dating Batista's sister who, for some reason, was not creeped out by the fact that he's developing the, you know, homicide video game. Where'd this guy come from?!