Three-year-old Colin Jacobs and his mother, 31-year-old Suzanne Jacobs, were killed in their home in Normal Heights, San Diego, on May 4, 1979. Suzanne’s husband, Michael, had left for work about 6:00 AM that morning. A neighbor reported a dark maroon sports car with a black top pulling up at the residence between 8:00 and 9:00 AM, and a phone call to Suzanne went unanswered between 11:00 and 11:30 AM, prompting concern.

Investigators later determined that David Allen Lucas entered the home and murdered both Suzanne and Colin. A handwritten note at the scene matched Lucas’ handwriting, and he was eventually linked to this attack as part of a series of killings in the area. Lucas was convicted in 1989 of the Jacobs murders and other related crimes and received a death sentence.

Anyone who knew the Jacobs family or who remembers unusual activity in Normal Heights on May 4, 1979, is asked to share what they know.