SALT LAKE CITY -- The murder trial of a Utah doctor charged in his wife's death resumed Friday with an expert testifying the 50-year-old woman wasn't at risk of a heart attack.
Utah cardiologist David Cragun says Michele MacNeill had a mild form of heart disease that wouldn't have killed her, refuting a defense theory. Cragun is a witness for the prosecution.
Prosecutors say Martin MacNeill hounded his wife to get cosmetic surgery, then knocked her out with painkillers, Valium and sleeping pills and left her to die in a bathtub.
On Thursday, Utah medical examiner Todd Grey testified he doesn't know how Michele MacNeill died in 2007 but that it could have been from a heart attack combined with drug toxicity.