Tyrone Mercer, 55, was found dead of a gunshot wound to the chest outside an apartment complex in Hartford on December 17, 2017. The shooting involved a small-caliber round; authorities noted the city’s gunshot detection system did not register any shot in that area, a detail investigators said could be explained by the round’s small size. Earlier that month the same apartment complex had been shaken by another homicide, a stabbing.

Mercer was born in the Bronx on July 30, 1962. Family remembered him as good-hearted and hardworking who enjoyed shopping, eating, and wearing his jewelry. No arrests or suspects have been publicly identified in connection with his killing, and the case remains unsolved.

Did anyone in Hartford around December 2017 see or hear anything near that apartment complex that could help investigators?