Betty Broderick, convicted in 1989 killings of ex-husband and his new wife, dies aged 78
Broderick was serving a life sentence in California over killings and last month transferred to a medical center

TL;DR
- Betty Broderick, known for the 1989 killings of her ex-husband and his second wife, died at 78.
- She was serving a life sentence and had been transferred to a medical center in April.
- The initial cause of death was determined to be natural causes, with her son stating she died from sepsis following a fractured rib.
- Broderick was found guilty of second-degree murder in 1991 for the deaths of Dan Broderick and Linda Kolkena.
- The murders occurred after a contentious divorce and involved Betty Broderick entering the residence and fatally shooting the couple.