Betty Krieger was 78 when she and her husband Michael, 83, were killed in their West Orange, New Jersey home on November 24, 1992. The couple had let a familiar handyman, Frank Masini, into their house that day to discuss flooring. No forced entry was reported, which led investigators to focus on people the Kriegers knew.

A bloody footprint at the scene was matched to a type of hiking boot Masini owned, and he was arrested. Masini later confessed to the Kriegers murders and to killing two other elderly victims. He pleaded guilty and in 1993 received a life sentence.