Crime | Anheuser-Busch Budweiser Heir Sued Over Girlfriend's Drug Death Model's family accuses August Busch IV of negligence By Rob Quinn Posted Apr 1, 2011 3:22 AM CDT Copied This photo provided by a family friend shows former Anheuser-Busch CEO August Busch IV, right, and his girlfriend Adrienne Martin. (AP Photo/Family photo via St. Louis Post-Dispatch) Anheuser-Busch heir August Busch IV is being sued by the family of a 27-year-old model who died of a drug overdose at his home last year. The family of Adrienne Martin, Busch's former girlfriend, accuse him of carelessness and negligence in the lawsuit filed on behalf of her 8-year-old son, AP reports. Authorities determined that she had lethal levels of both oxycodone and cocaine in her system when she died. Prosecutors decided against filing criminal charges against Busch, the former CEO of the beverage giant. Read These Next President Monroe's daughter wrote a desperate plea in 1839. 'Butt-breathing' could be the future for struggling patients. Online boo-bears go after the demo firm tearing White House apart. Plane windshield partially shatters mid-flight. There's a suspect. Report an error