Anyway, so they begin the briefing with an announcement from Masuka that forensics have determined that Quinn and Deb are cleared of any wrongdoing in the restaurant shooting. The shooter was a disgruntled former employee. Deb scoffs that people are dead because this guy wanted his job back waiting tables. I doubt seriously he thought he was going to get his job back. Next order of business. Angel wants to know what's up with the investigation into Omar Rivera's death. He's the guy with the snakes in the chest. Dexter says that, as they had thought, the snakes and stitches happened post-mortem. Masuka says that he and his "lovely intern" Ryan are waiting for the medical examiner to return with info about the snakes. Angel says that Rivera had ties to a drug cartel and, in that culture, a snake means a snitch; so, if it's not about drugs, he doesn't know what this could be about. Dexter VO's that maybe Angel doesn't get it because it's in a language only Dexter understands.
Suddenly, Quinn asks about a "holy piece of shit" that he sees in the station. Dexter recognizes him. It's Brother Sam (played by Mos Def -- I think he's freaking fantastic) and Dexter VO's that he recognizes him. Rivera worked at Brother Sam's body shop when he got out of jail. Quinn says that Sam and his ex-con friends can go to hell, and then everyone disperses. Masuka tells Dex that Sam runs a body shop as sort of a halfway house for former inmates, though most of the cops think it's a sham. Dex agrees that Sam can't be a man of the cloth -- he's a killer. I guess that's how he recognized him.
Matthews is in his office watching the video of Deb when Laguerta enters and says that she's settled into his old office. Question: How did Matthews promote himself ? Did he just create a new position so that Laguerta could have his old job? Maria wants to know when he's going to finalize Angel's promotion to Lieutenant. He says he's on it, and then sort of insinuates that she should leave. She does. After she's gone, he watches the video again.
Angel questions Brother Sam about the last time he saw Rivera. Sam is as cool as a cucumber and seems very sincere, but Angel isn't very polite to him. He thinks Sam might know something about his murder. Dexter is watching a surveillance monitor and VO's that he knew Sam when he was a burglar who accidentally killed someone. Dexter was going to kill him when a drug bust got him arrested and taken off the streets and out of reach. Sam tells Angel that Omar was on the straight and narrow. Angel reminds him that he vouched for another ex-con who subsequently killed a 19-year old girl. Sam says that he thinks about that girl every day, but Angel says that her blood is on his hands. Oh yeah? Sam says that there is a lot more than that girl's blood on his hands. He says he's in need of lots of redemption. Angel doesn't believe him and he doesn't care, but he says that Omar did not have this coming. His demons were gone. He says that men can change. "Men maybe but what about a monster?" asks Dexter. More monster talk. Fantastic.