Title Recommendations based on The Creeper

Geniuses who work for the FBI's Behavioral Analysis Unit are chasing down serial killers and battling their own minds. Although they work for the "good guys," the lines are not always so clear.

Everything was normal for Clary Fray until she witnessed a group of teenagers murder someone. Now she's seeing things no one else can see. And her mother has vanished, leaving only a cryptic message. Clary joins the Shadowhunters, who are humans infused with angels' blood who use their supernatural abilities to wage a secret war against demons and monsters. They don't seem keen on her joining, but now that she knows what's out there, what else can she do?