Officials in Utah have formally closed a 51-year-old cold case after using new DNA technology to identify a murdered teenager as a victim of serial killer Ted Bundy. Laura Ann Aime, 17, disappeared after leaving a party on Halloween in 1974. Her body was discovered about one month later by hikers in the American Fork Canyon. On Wednesday, the Utah County Sheriff's Office announced that new testing 'confirmed irrefutably that DNA evidence recovered from Laura's body verified the existence of DNA belonging to Bundy'. Between February 1974 and February 1978 Bundy murdered at least 30 women, and has been linked to many more killings throughout the country. Before he was executed in Florida in 1989, Bundy confessed to Laura's killing, but since he would not elaborate, the sheriff's department kept the case open until investigators could prove, without a shadow of a doubt, that he was her killer. This case is now officially closed, Utah County Sheriff Mike Smith declared during a news conference. He added that if Bundy were still alive, prosecutors would pursue the death penalty against him. Bundy is among America's most infamous serial killers, having attacked victims throughout the Pacific Northwest, Colorado, Utah, and Florida. At the time of Laura's death, he was living in Salt Lake City and studying law at the University of Utah. The sheriff's statement said Laura is remembered as an outgoing free spirit who enjoyed outdoor activities and shared a passion for riding horses, hunting, and caring for her several siblings.\