After more than 40 years, authorities say they have identified the man responsible for the 1984 killing of 16-year-old Theresa Fusco on Long Island, New York.

Fusco disappeared after leaving her job at a local roller rink in 1984. The case remained unsolved for decades despite multiple investigations.

The breakthrough came through DNA evidence found on a smoothie straw, which authorities say links a suspect to the teenager's death. The development represents a significant advancement in a case that has spanned more than four decades.

The investigation previously resulted in three wrongful convictions before the recent identification of what authorities believe to be the actual perpetrator. The case highlights both the challenges of cold case investigations and the potential of advancing forensic technology.

Details about the suspect's identity and the circumstances of the arrest have not been fully disclosed by authorities. The case is being featured in a report by CBS News' "48 Hours" program.