Griffin O'Neal, son of actor Ryan O'Neal, has pleaded not guilty to drug and firearm possession and driving under the influence stemming from a head-on traffic collision that injured a motorist two months ago.
The San Diego Union-Tribune says O'Neal faces six felony and misdemeanor charges related to the Aug. 2 accident.
Deputy District Attorney Vanessa DuVall said Thursday that the 46-year-old O'Neal veered into oncoming traffic and hit a car, causing head and back injuries to its driver.
DuVall says blood tests showed O'Neal had ingested amphetamines, cocaine, marijuana and Xanax. Crack cocaine and loaded firearms were found in his car.
Defense attorney Heather Boxeth said O'Neal had been trying to help his half-brother Redmond O'Neal, who had been arrested on suspicion of heroin possession the same day.