HEAVENER, Okla. — A 28-year-old man has been arrested on two counts of first-degree murder after investigators say he physically assaulted his pregnant girlfriend, who was found dead inside a Heavener home Monday evening, October 26, 2026.

Austin Morrison, 28, is accused in the deaths of Stephanie Strock, 20, and her unborn child, according to the Oklahoma State Bureau of Investigation (OSBI).

The investigation began Monday evening when officers with the Heavener Police Department responded to a welfare check at a residence in the 500 block of West D Avenue.

When officers entered the home, they discovered Strock deceased.

Investigators determined that Strock had suffered injuries consistent with homicide. Authorities also learned that she was pregnant.

Boyfriend Located Walking Near Scene

The Heavener Police Department requested assistance from the OSBI to investigate Strock's death.

Later that evening, investigators located Strock's boyfriend, Austin Morrison, walking in the area near the residence.

According to the OSBI, evidence gathered during the investigation indicated that Morrison had been with Strock on the evening of October 26 and had physically assaulted her.

Morrison was taken into custody and booked into the LeFlore County Jail on two counts of first-degree murder, one in connection with Strock's death and the other involving her unborn child.

OSBI Continues Double Murder Investigation

The Oklahoma State Bureau of Investigation is continuing to investigate the circumstances surrounding the deaths.

The agency acknowledged assistance from the Heavener Police Department, LeFlore County Sheriff's Office, LeFlore County District Attorney's Office and Oklahoma Highway Patrol.