On Dec. 6, 1991, Det. John Jones was on duty when his police radio crackled: a local yogurt shop was on fire and firefighters were reporting multiple bodies. The victims were four female teenagers and they had been murdered - a fire most likely set to destroy the evidence. But Jones didn't know all that at the time.
The investigation into Janet Walsh's 1979 murder began with multiple suspects, but the leads dried up and decades passed. "48 Hours"' Peter Van Sant reports on a case with plenty of "twists and turns" that led detectives to a crime lab for a possible breakthrough. Watch "Janet's Secret" Saturday, Dec. 31 at 10 p.m. ET/PT on CBS.
Janet Walsh was just 23 years old when she was found murdered in her Monaca, Pa., home in 1979. Back then, investigators were eyeing five suspects, but couldn't make an arrest. In 2010, time and technology catch up with the case. For more, watch "Janet's Secret," Saturday, Dec. 31 at 10 p.m. ET/PT on CBS.