Updated

Prosecutors have decided not to file charges against the 25-year-old son of Denise Brown and his girlfriend after they were arrested in a reported domestic violence incident.

Brown became an advocate against domestic violence after her sister, Nicole Brown Simpson, was slain in 1994.

Sean Brown and his girlfriend, 22-year-old Amy Johnson, were arrested after police answered a pre-dawn call Tuesday and found the couple with superficial wounds that didn't require hospitalization.

They were held in jail for investigation of inflicting injury on a spouse, but they were released when the district attorney decided not to file charges.

O.J. Simpson was acquitted of murder in a high-profile trial where Denise Brown testified that he had physically abused his ex-wife. She founded the Nicole Brown Simpson Foundation to fight domestic violence.