ST. CHARLES, Ill. (AP) — Shootings that left three people dead in suburban Chicago appear to be a murder-suicide carried out by a man who fatally shot his teenage twin daughters and wounded his wife before killing himself, police said Sunday.

The bodies were discovered Friday in St. Charles. Police said the man and his wife both called 911 to report the shootings.

St. Charles Deputy Police Chief David Kintz said Randall Coffland told a police dispatcher that he shot his 16-year-old daughters and his wife, 46-year-old Anjum Coffland. She told dispatchers in a separate call that her husband had shot their daughters and shot her in the legs.

Police later found the bodies of the two girls and their father. All had been shot once in the head, and a handgun was found near Randall Coffland's body, according to investigators.

Anjum Coffland was taken to a hospital, where she was in fair condition Sunday.

Kintz said detectives are still trying to piece together what led up to the shootings. He said police responded to a report of domestic trouble last month, but nothing physical was reported during the incident.

Police have said the Cofflands were married, but that Anjum Coffland didn't live in the condominium where the shooting took place. Kintz said detectives had not determined as of Sunday why she was in the home at the time of the shooting.

Kintz said two guns found in the home will be tested to determine if one or both were used in the shootings. He said the husband had a valid Illinois Firearm Owner's Identification card.