On the night of October 7, 2010, 35-year-old Frederick Mathieson was fatally shot at about 11:40 p.m. in the Cathedral public housing project in Boston’s South End. Officers who heard the gunfire responded to 42 Harrison Archway and found Mathieson; he was taken to Boston Medical Center and later pronounced dead.

The shooting was one of several homicides in the city that year. No suspect or arrest has been publicly identified, and the Boston Police Department lists the case among the unsolved homicides of 2010. The investigation remains open and the family has not received answers about who was responsible for Mathieson’s death.

Did anyone in the South End that night see or hear anything that could help solve this case?