I guess it can be argued whether Evan is actually emotionally disturbed or just plain evil, but the reaction he evokes every time he's onscreen in this episode is revulsion. I couldn't wait for the end to come and have Victoria finally do him in - although it took her long enough! In real life, her daughter would have been dead by the time it took for her to pull the trigger as she was choked for several seconds (oh, and Victoria claims she tried everything but nothing worked, but a solid bite on Evan's tricep probably would have produced favorable results).
Victoria's annoying in this episode - Audra's assaulted and her mother questions whether she didn't send out the wrong signals to the neighbor boy - then goes and apologizes on her behalf! Linda Evans is so demure throughout the episode, despite the sexual harassment, it seems as though she wouldn't send out any signals at all...
Later, Mrs. Barkley's little speech at the end to her daughter was also kind of weird. She says how parents naturally defend their children no matter what, instinctively. But a good parent, a true parent, would have the tough love necessary to do the right thing and stand up to their kids, particularly when they had turned into rotten sociopaths that were hurting themselves and spreading evil wherever they went. It seems as though Evan's mom wanted this for her son, but the father really didn't love his boy enough to do the hard thing and let him face some consequences.
Nick, as always, takes the cake in so many ways :)