SPRINGFIELD, Mass. (WWLP) – The Springfield Police Department arrested a suspect Monday night who is allegedly involved in a murder case.

According to Springfield Police Spokesman Ryan Walsh, officers were called to a convenience store at around 10:30 a.m. for a report of a gunshot victim at the One-Stop Plaza on Central Street.

The gunshot victim, identified as 48-year-old Humberto Santos of Springfield, received serious injuries and died inside the store, where the police also located a firearm.

During the investigation, a man later identified as 25-year old Genesis Arias-Santos returned to the store on his own and was taken to Mercy Hospital due to a medical episode. According to Hampden District Attorney’s Office Spokesperson Jim Leydon, the suspect is believed to be the son of the victim.

As the investigation continued, the Springfield Homicide Detectives along with the Hampden District Attorney Anthony Gulluni’s Murder Unit identified Arias-Santos as the only suspect of the murder and at around 11:00 p.m. Arias-Santos was arrested inside Mercy Hospital on murder charges.

Genesis Arias-Santos of Springfield is charged with:

  • Murder
  • Discharging a Firearm within 500 feet of a building

Arias-Santos is expected to be arraigned in Springfield District Court on Tuesday.

The homicide is still being investigated by the Springfield Police Department’s Homicide Unit and the Hampden District Attorney’s Office’s Murder Unit. No other injuries have been reported.