=Forensic psychology may seem like a niche branch of law enforcement, but its contribution over the last few decades cannot be understated. Criminal profilers have helped capture some of the country's worst criminals, as well as prove the innocence of people in several police investigations. Below are some of the biggest criminals ever caught thanks to forensic psychology. Dr. John Denboer . Image source: history.com Image source: goodhousekeeping.com Ted Bundy : Before news ever broke of Ted Bundy, no one suspected him of heinous acts due to his charisma and personality. A murderer, rapist, and necrophiliac, Bundy confessed to 36 murders while experts believe his victims were more than 100. He was initially arrested after a search of his car revealed to paraphernalia such as ropes, crowbars, a face mask, and handcuffs. Further investigation into the items led law enforcement to link Bundy to his actual crimes. Dr. John Denboer . John Wayne Gacy : Gacy was a