State Police have also announced a reward of up to $2,000 is being offered to anyone with relevant information leading police to an arrest in the murder.
Troopers continue to investigate the death of Vincent M. Robertson, 47, of the first block of Green Lane, who was found dead in his home about 11 a.m. Monday.
Troopers from the North East Barrack responded to a 911 call to help paramedics with an "unknown medical situation" at the home, according to a State Police news release.
Robertson was found in the dining-living room area of the home with multiple gunshot wounds, State Police spokeswoman Elena Russo said Tuesday. No one else was injured in the shooting, she said.
After Robertson was pronounced dead at the scene, his body was taken to the Office of the Chief Medical Examiner in Baltimore, where an autopsy determined he suffered multiple gunshots to the upper torso, State Police said.
The State Police Homicide Unit is investigating along with the Criminal Enforcement Division. The Cecil County State's Attorney's Office was notified of the incident.
Investigators are continuing to interview witnesses, State Police said Wednesday, and no suspects had been publicly identified.
Anyone with information is asked to call Metro Crime Stoppers, 1-866-756-2567. Callers may remain anonymous.