Josie Harris was found dead at her California home. She was the mother of three of boxer Floyd Mayweather Jr's children.

Authorities discovered an unresponsive Harris in her car outside her home in a Southern California suburb just before 10 pm on Tuesday.

Firefighters who responded to the scene pronounced her dead.

Harris previously accused Mayweather of abusing her on multiple separate occasions.

In 2010, she claimed Mayweather entered in her Las Vegas home in the middle of the night. She said Floyd barged into their home and attacked her in front of their children. Harris said the boxer pulled her by her hair, and then beat her and screamed profanity at her.

He was charged with a reduced misdemeanor and served two months in jail after he pled guilty in court.

He later claimed he was only found guilty because he was "black, rich, and outspoken."

Koraun, Floyd's son, was 10 years old at the time of the attack and told authorities he witnessed his father "hitting" Harris.

She filed a defamation case against Mayweather in 2015, as well as intentional and negligent infliction of emotional distress following his interview where he accused Harris of being under the influence of drugs and called his 2010 actions as "restraining a person."

The lawsuit proceeded after a California appeals court ruled against the boxer's objections in 2018.

Investigators said there was no foul play connected to her death but refused to release the cause due to a security hold on the case. The Los Angeles County Department is still actively investigating the case.

Mayweather has yet to release a comment on Harris' death.

The Greatest American Boxer

Floyd Mayweather
Reuters/Andrew Couldridge

Floyd Joy Mayweather Jr. is regarded as one of the most famous American boxing promoter and former professional boxer in the world. He won a total of fifteen major world titles during his boxing career.

Floyd was ranked first in Forbes' Celebrity 100 in 2018 where he reportedly earned $275 million for his role as the promoter and boxer in his 2017 fight against Conor McGregor.

He also secured the top spot in The World's Highest-Paid Athletes in 2018 and placed 34th in America's Richest Entrepreneurs Under 40 in 2016.

Floyd has often been referred to as "the best defensive boxer" and the most accurate puncher since CompuBox was first used.

Mayweather has generated around $1.67 billion in revenue for his pay-per-view matches, beating other PPV attractions such as Mike Tyson, Oscar De La Hoya, and Manny Pacquiao.

Mayweather, who was born Floyd Joy Sinclair, is the son of welterweight contender Floyd Sr. and the nephew of former WBA super featherweight and WBC super lightweight champion Jeff Mayweather.

Floyd Sr. introduced Mayweather to the world of boxing at a young age, often holding speed bags in front of the young child whenever they visited the gym. He was fitted for his first pair of boxing gloves at the tender age of seven.

Floyd Jr. had a tough life growing up. His senior was known for having violent tempers. Floyd Sr. was occasionally in and out of trouble as a drug dealer. Deborah, the boxer's mother, also had substance abuse issues.

He and his father had huge differences, leading to him firing his father as both manager and trainer in 2000 due to the overbearing family-dynamics.