Yesterday at approximately 3:42pm, officers responded to 1518 Tremont Street for a report of shots fired. Witnesses at the crime scene gave police a description of the incident and police conducted a search of the area. Police officers found evidence that a shooting occurred and recovered a 9mm handgun. The suspect could not be located.At approximately 2:00 this afternoon, detectives from District B2 interviewed a suspect who admitted to shooting a weapon at another individual at that location. Luis Perez, 20, of Dorchester will be charged with Unlawful Possession of a Firearm & Ammunition, Discharging a Firearm within 500 feet of a Dwelling, Assault by means of a Dangerous Weapon and Assault with intent to Murder. Perez will be arraigned in Roxbury District Court on Monday. Detectives have identified other suspects involved in the incident and will continue their investigation to bring these individuals to justice.