JEFFERSON COUNTY, Colo. (CBS4) – The Jefferson County Sheriff’s Office has released the identities of those involved in a family disturbance that turned deadly Monday night.

Deputies say they received a call from Sarah McConaghie, 24, reporting a family argument between her stepbrother, Robert Doyle Leiman, 25, her biological mother, Margaret Leiman, 53, and her stepfather, Bruce Leiman, 58.

(credit: CBS)

(credit: CBS)

“Sarah called 911 after hearing gunfire from the main level of the home. Sarah remained on the phone with dispatchers, hidden in a closet until deputies arrived on scene,” Jacki Kelley with the sheriff’s office said in a statement.

When deputies arrived they found three people on the main floor who had sustained gunshot wounds.

“Margaret and Robert were both pronounced dead at the scene. Bruce was transported by air ambulance to Swedish Hospital,” Kelley said. “Sarah stayed hidden in her room until deputies came to her door and escorted her from the home.”

According to officials, Bruce remains in stable condition.

The investigation found that the handgun used belonged to Robert Leiman.

“Multiple shots were fired inside the home, to include shots that were intended for Sarah,” Kelley said.

Investigators believe that during the argument Robert Leiman retrieved the handgun from his bedroom, returned to the main level of the home and shot his parents multiple times.

“Robert then fired several shots into the room where Sarah was and then returned to the main floor where he shot himself,” Kelley said.

The coroner found that Margaret Leiman died from died from multiple gunshot wounds and Robert Leiman died of a self-inflicted gunshot wound.

Robert’s grandfather, Kenneth Leiman said his grandson served 7 years in army spending time in Korea and Iraq with the Special Forces.

Records show that Robert Leiman was a combat engineer for the Army and had once been stationed at Fort Carson.

Kenneth doesn’t believe Robert’s time overseas played a role in the shooting but rather his military training.