Continuity mistake: In the scene where Logan carries Veronica into her room and covers her with the blanket, she is fully clothed. When she comes out to ask him, "don't go," and then kisses him, she is not wearing pants and has a different shirt.
Other mistake: Spoiler... When Stu Cobbler (Martin Starr) is revealed as the murderer, he goes to Gia's apartment to kill Veronica. Upon entering, Cobb has to disable an alarm with a digital touch pad, requiring the use of his fingers. However, he uses the metal barrel of the gun.