Andrew Getty, the grandson of oil tycoon J. Paul Getty, was found dead early Tuesday morning. He was 47. The cause of death is unknown, but is “under suspicious circumstances,” the Los Angeles Police Department told TMZ.

It is “undetermined” if his death was a homicide, but it will be investigated by LAPD’s Robbery Homicide Division, which deals with complicated and high-profile cases, KNBC, Los Angeles reported Tuesday.

It was originally reported that Getty suffered from a fatal gunshot wound, but TMZ wrote that wasn’t true. Instead, the multibillionaire oil heir “suffered a traumatic injury to the rectal area and paramedics found significant bleeding.” KNBC also noted there was trauma to the body, but did not elaborate on what had happened.

Getty and his ex-girlfriend, who has not been identified, had a history of domestic violence calls. The police were called to his Hollywood Hills home more than 30 times, and they were both often under the influence when authorities arrived.

His ex-girlfriend was reportedly at the home when Getty died and called 911 to report cardiac arrest, TMZ claimed, but KNBC reported the call was made by an unknown woman who said someone was dead in the bathroom.

Getty’s ex was reportedly placed on psychiatric hold in the past after she attacked authorities.

Unless it is determined Getty’s death was a crime, the Los Angeles County Coroner will lead the investigation, KNBC wrote. If found that Getty’s death was a homicide, the LAPD with take control of the investigation.  

Andrew Getty is one of four sons of Gordon P. Getty, the Los Angeles Times wrote. He has a net worth fortune of $2.1 billion, Forbes magazine estimated. The family is listed as the 54th richest in the U.S. and worth an estimated $5 billion.

Follow me on Twitter @mariamzzarella