Editor's note: This article has been updated throughout.

After police attempted to make contact with a Sherman man involved in domestic disturbance, they found the man dead from a self-inflicted gunshot wound Friday afternoon.

Shortly after 1 p.m., police responded to the Villas of Parkhaven on FM 1417. Sherman Police Sgt. D.M. Hampton said a woman told employees at the apartment complex office that she had been assaulted, so police were called. When officers arrived on scene, the suspect was back inside the apartment. They knocked on the door.

“They heard him ask who it was — they said police,” Hampton said. “They heard what sounded like a muffled shot.”

Police backed off, formed a perimeter, and Hampton said they began to treat the situation as a barricaded person. The Special Response Team was brought in with negotiators.

Debbie Noahubi, the manager of the apartment complex, said residents in building 12 were evacuated and brought to the office area. She noted the woman who reported the assault was the girlfriend of the man. Police attempted to make contact with the man via cellphone for at least 40 minutes, Hampton said.

“When that didn’t work, they were able to breach the windows of the some of the apartments to see if he was in there,” Hampton said. “Once they felt relatively safe, they made entry into the apartment and found him deceased with a single gunshot wound.”

The man appeared to be in his mid to late 20s, and Hampton said he believed the weapon was a handgun. Noahubi said the girlfriend reported the man was a veteran, however, police were not able to confirm that detail Friday afternoon.

Police began to leave the scene at about 4 p.m.