Alexander Mervin, 22, was killed in Roxbury on January 11, 2018. Police responded around 1:45 p.m. to reports of gunfire at 31 Whittier Street and found Mervin with apparent gunshot wounds; he was transported to a hospital and later pronounced dead. His death was reported as Boston’s first homicide of 2018.

Investigators worked the case for months. On April 29, 2018, the Boston Police Fugitive Apprehension Unit arrested 19-year-old Jerion Moore of Stoughton on Stratton Street in Dorchester and charged him with murder. A second suspect, 18-year-old Nicholas Sicellon of Dorchester, was later identified; at the time he was charged in Mervin’s death he was already incarcerated on an unrelated matter. Both men had separately been arrested on gun charges in the weeks after the shooting, and were arraigned in Roxbury Municipal Court on charges connected to the killing.

Anyone with information about what happened at 31 Whittier Street that afternoon is asked to come forward.