Frontenac police released the tape Sunday in which a Busch employee told the 911 dispatcher the woman wouldn't wake up. Police said he told the dispatcher he didn't know if she was breathing because it was "dark back there."
Adrienne Nicole Martin, who was 27, was pronounced dead at the scene Dec. 19. The cause of death has not been released. Frontenac Police Chief Thomas Becker also said Busch was at home at the time.
Busch's lawyer, Art Margulis, has said there was nothing suspicious about the death.