On May 29, 1976, police in Denver’s Baker neighborhood answered a report of a shooting and found two people dead inside a residence. Forty-seven-year-old Cecil Richards, a white male, had been shot to death. His roommate, Billie E. Harris, was also found fatally shot.

The double homicide stunned the neighborhood and launched a Denver Police Department investigation that followed multiple leads and explored possible motives. The trail eventually went cold, and the case was placed in the city’s cold files.

Did anyone in the community have contact with Cecil Richards or Billie E. Harris around late May 1976 or notice anything unusual that afternoon?