New DNA testing has definitively linked serial killer Ted Bundy to the 1974 murder of 17-year-old Laura Ann Aime in Utah.

Authorities say the evidence confirms Bundy’s involvement “without a doubt,” officially closing the case after more than 50 years.

Aime was abducted after leaving a Halloween party, later found murdered along a highway weeks afterward.

Advances in forensic science allowed investigators to reexamine old evidence and make the breakthrough, USA Today has reported.

Officials hope the confirmation brings long-awaited closure to the victim’s family.