Natalie Wood's 38-year-old daughter has been busted at her Malibu home on suspicion of felony possession of cocaine and heroin, sources tell TMZ. Police discovered the drugs when they responded to reports of a woman screaming and a gunshot, said the sources. An unidentified man at Courtney Wagner's home was reportedly arrested and charged with negligent discharge of a firearm. Wagner, whose dad is actor Robert Wagner, has been released on $10,000 bail. Courtney is the only child of Wagner and Natalie Wood, who died in a mysterious drowning on a boat trip with her husband. She also had a daughter with one-time husband Richard Gregson. (More Natalie Wood stories.)