On the pre-dawn morning of September 10, 2015, 32-year-old Zachary Pinnick, known to family and friends as Zack Frost, was shot and killed on Holworthy Street in Boston. Police found him suffering from multiple gunshot wounds in front of 56 Holworthy Street at about 4:40 a.m.; he was pronounced dead at the scene. Pinnick was a father of five.

The Boston Police Department opened an investigation and canvassed the neighborhood, but no arrests or public identifications of suspects have been made. The case remains unsolved and is now treated as a cold case, and the family continues to seek answers.

If anyone has information about Zachary Pinnick’s death or remembers activity on Holworthy Street that morning, please contact the Boston Police.