Convicted murder Robert Durst, the wealthy real estate heir who drew attention in 2015 for suspicions of other killings, died Monday at a prison facility in Stockton, California. He was 78.

Durst’s death “was due to natural causes” from several health issues, according to his attorney.

His health had deteriorated over the years. Durst had bladder cancer. In October, he tested positive for COVID-19 and was placed on a ventilator.

In September, Durst was convicted of killing his friend Susan Berman in 2000 at point-blank range in her Los Angeles home. He was sentenced to life in prison without parole in October.

He was later indicted for the death of his wife, Kathie Durst, who went missing in 1982 and was later declared legally dead.

Los Angeles prosecutors had said that Berman planned to tell authorities that she helped Durst cover up Kathie’s death. Durst was charged with second-degree murder in Kathie’s death.

He was also suspected of killing a man in 2001, after body parts of his neighbor, Morris Black, were discovered floating in Galveston Bay, Texas. 

Durst was later acquitted of murder charges on grounds of self-defense after he claimed he shot his neighbor during a struggle for a gun.

Durst had no children and is survived by Debrah Charatan, his second wife.

Robert Durst Real estate heir Robert Durst appears in a New York criminal courtroom on Dec. 10, 2014, for his trial on charges of trespassing on property owned by his estranged family. Photo: Reuters