On the evening of September 19, 2011, 23-year-old Kristopher Rosa was fatally shot in Avon, Massachusetts. He and his girlfriend had just left his father’s house and were parked when another vehicle approached and multiple shots were fired. The girlfriend, unharmed, drove Kristopher to Good Samaritan Hospital in Brockton, but he died of his wounds. That shooting was the town’s first homicide in 15 years.

Police said Kristopher had been specifically targeted and investigators noted he was known to law enforcement. Family members described him as a hardworking father who was always smiling and mourned that his infant son would grow up without him. Subsequent investigation pointed to a long-standing rivalry involving two men connected through a shared relationship with the child’s mother; one of the men was placed in the area by cell phone location data and a witness later amended an earlier alibi.

Does anyone with information about Kristopher, his movements that night, or the people involved wish to come forward?