Authorities said the victim was experiencing homelessness.
The fire was reported around 11:30 p.m. Monday in the 1100 block of Browning Boulevard, located near the intersection of Vermont Avenue and West Martin Luther King Jr. Boulevard in South LA’s Exposition Park neighborhood.
Officers with the Los Angeles Police Department and Los Angeles City firefighters responded to the scene. After crews knocked down the flames, they discovered a 65-year-old man inside the RV.
Witnesses told authorities the suspect threw something inside the SUV before it caught fire and that the victim and the suspect may have had an altercation earlier in the evening.
The suspect was arrested for vandalizing the victim’s RV hours before the fire. However, since vandalism is a misdemeanor, officials said he was booked and released.
The causes of the fire and the victim's death are under investigation.