The Lion Sleeps Tonight
Dexter Season 3 Episode 3 (10/12/08)
After Dexter meets a pedophile at the grocery store, who's set his sights on Astor, he has to make a decision about his code. Will he kill a non-killer? Later in the episode, we learn: yes.
While this is going on, Miguel and Dexter each know the new body that showed up skinned wasn't Freebo's doing, so these two must find a way to get the squad off Freebo's scent.