Cortland | Two Cortland residents suffered non-life threatening gunshot injuries Thursday night before the shooter, Michael L. Sebourn, killled himself, according to a DeKalb County Sheriff’s Office Press Release.

Police were summoned to the house at 11 E. Railroad St., the site of the shooting, for help just before 10 p.m. When police arrived, Sebourn, 46, of Redfield, Ariz., began to fire rounds with a handgun, wounding a mother and son, residents of the home, according to the press release. The two victims were taken to OSF Saint Anthony Medical Center in Rockford for treatment, said DeKalb County Sheriff Roger Scott.

Sheriff’s deputies and DeKalb city officers arrived to help Cortland officers secure the scene of the shooting while other agencies blocked Somonauk Road north and south of the railroad tracks. Union Pacific Railroad stopped train traffic through Cortland from 10:15 p.m. through 3:15 a.m upon request.

Sebourn remained in the home and after several warnings and attempts to make contact with him, Sheriff’s Special Operations Team entered the house around 2:30 a.m. Friday and found Sebourn with a self-inflicted gunshot wound, according to the release.

Sebourn was pronounced dead at 3 a.m. Friday at the Railroad Street house, according to a press release from the DeKalb County Coroner’s Office.

The son was released from OSF Saint Anthony Medical Center. The mother was expected to be released Friday, Scott said, but he could not confirm that she had been.

According to the release, the residents of the house knew Sebourn but he did not live there.

The DeKalb County Sheriff’s Office, Cortland Police Department and DeKalb County Coroner’s Office continue to investigate the incident.