TheFutonCritic.com - The Web's Best Television Resource this is a 9 episode series 6 have aired and there are 3 left:
8/18/13 (Su.) 9:00 PM ABC (#109) Golden Cuffs
8/11/13 (Su.) 9:00 PM ABC (#108) Frost Nixin
8/4/13 (Su.) 9:00 PM ABC (#107) Party Crasher
That looks as if there will be two more deaths and a 3 person finale with one of the three being the killer.