former anheuser-busch ceo. now a mysterious 911 call is surfacing. it's raising even more questions about this strange case. let's find out more from cnn's casey wian in los angeles. >> the cause of death of a mother and former model dating an anheuser-busch family heir remains unsolved. more than a week after adrienne martin, the girlfriend of august busch iv was found dead in his st. louis area mansion, police have released a 911 call made by an employee at the busch home. >> we need an ambulance. >> what's the problem? >> this girl is not waking up. we can't get her to -- >> is she breathing? >> we don't know. i'm going to get a light and try to see. >> all right. i'll get them going right away. >> reporter: that call was placed at 1:12 sunday afternoon,