Dexter Season 5 Episode 2 (Dexter s05e02) with title “Hello Bandit” aired on Sunday, October 3rd 2010 at 09:00 pm via Showtime Network.
Here is summary for Dexter Season 5 Episode 2 :

On the heels of Rita’s murder, Dexter tries to get the family back into a familiar routine, but a frightening discovery may lead to his next quarry. Meanwhile, a brutal murder in a Venezuelan neighborhood has the squad scrambling; and Debra, who’s opened her home to Dexter and the children, finds herself without adequate accommodations, and turns to Quinn for help.