Crime / Anheuser-Busch Budweiser Heir Sued Over Girlfriend's Drug Death Model's family accuses August Busch IV of negligence By Rob Quinn, Newser Staff 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. (More Anheuser-Busch stories.) Report an error