crime and punishment tonight, medicine the mistress and possible murder. day two of a trial in utah where dr. martin mcneal is charged with murder and obstruction of justice in the 2007 death of his wife michelle. at the time he is her death was attributed to natural causes due to cardiovascular disease. some of her eight children didn't buy it. a few years later a new analysis reopened the case and the whole thing started to unravel. at the center of the case, prosecutors say dr. martin mcneal was living a double life and his motive for the alleged murder was a desire to be with his mistress, a woman named gypsy. today the mcneal's former neighbors were on the stand describing what they saw the day michelle was found dead. jean cazares has more. >> reporter: neighbor kristi daniels recounted the tragic moments after michelle mcneal was found unresponsive in her bathtub. she had been called to the mcneal home by their youngest daughter, ada. >> i saw that michelle was in the tub and martin was over the