Ted Bundy's violent spree spanned at least four years, leaving dozens of victims, including at least 30 women and girls killed. A Utah sheriff has confirmed Wednesday that new DNA testing links Bundy to the unsolved death of a teen in 1974. The sheriff's office says another cold case is expected to be “close to closure” soon. Bundy is one of the most prolific serial killers in U.S. history whose victims were young women and girls in Utah, Colorado, Idaho and Florida. He was executed in 1989.