On December 6, 1975, Wesley Diggs returned to his Teaneck, New Jersey, home and found his wife, Jean, 39, and their four children dead from gunshot wounds. Audrey, 17, Allison, 16, Wesley Jr., 12, and Roger, 5, were found in their bedrooms; Jean was in the basement recreation room. Each victim had been shot multiple times and there were no signs of forced entry.

Investigators initially focused on Wesley Diggs, a 40-year-old businessman who owned several businesses in Harlem, but he denied involvement, submitted to questioning, passed a polygraph, and was cleared as a suspect. Despite extensive investigation, no arrests were ever made and no suspects were publicly identified. The motive remains unknown.