Killer

Aria, Spencer, Hanna, and Emily thought that they finally knew the truth, at least about Ali s murderer, if not the identity of their latest stalker, "A." But what if the cops are wrong about who killed Ali? "A" is convinced they are and if Spencer, Emily, Aria, and Hanna won t work to solve the case, then "A" has just the ammunition to ruin their futures. At first the girls are unsure who to believe, but the deeper they dig, the more it looks like one of Rosewood s finest could be the real killer.