A missing Long Island teen is found dead. More than 40 years later, DNA on a straw leads to her suspected killer

On June 12, 1984, 15-year-old Kelly Morrissey vanished into the night. She left her home after dinner and never came back.

Five months later, it was her friend Theresa Fusco. On Nov. 10, 1984, the 16-year-old left her job at Hot Skates, a popular roller rink never to be heard from again.

Forty-one years ago, trying to find them was a different job. Police had to look for real footprints — not digital ones, and it was easy to vanish without a trace.

1984: Kelly Morrissey and Theresa Fusco go missing

Kelly Morrissey and Theresa Fusco were growing up in the suburbs of Long