Derrick Wallace, 37, was killed in Detroit on the evening of December 30, 2011, in the area of 12021 Heyden Street. An African-American man, Wallace’s death came during a year when the city saw a surge of homicides that strained police resources and left many families without answers.

The circumstances of the killing remain unclear. Investigators faced limited witness cooperation and little forensic evidence, and no suspects or arrests have been publicly identified. Wallace’s case is classified as a cold homicide and his family continues to seek closure.

If anyone has information about Wallace, the location on Heyden Street that night, or contacts who might help the family, please share what you know.