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.
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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.