the case we've been tracking. The utah doctor on trial for murdering his wife. Two of his doctors set to testify against him. And our legal team, dan abrams and nancy grace, to weigh in on the latest.... See More
the case we've been tracking. The utah doctor on trial for murdering his wife. Two of his doctors set to testify against him. And our legal team, dan abrams and nancy grace, to weigh in on the latest. First, here's the latest from aditi roy. Reporter: The latest in the case, started with 50-year-old michele MacNeill being rushed to the emergency room. Dr. Leo wagner examined her. MacNEILL WAS DECLARED DEAD A Short time later. The mother of eight left behind a husband of nearly three decades, now on trial for her death. WAGNER TESTIFIED that MacNeill made an unusual request in the e.R. He offered me money to continue my resuscitation and not quit. Reporter: Prosecutors say he gave his wife a deadly dose of prescription pills. His attorneys say michele MacNEILL DIED FROM A HEART Problem. They also heard from the girlfriend of their son, damian. At the time, it did seem strange, yes. Reporter: This morning, MacNEILL IS EXPECTED TO COME Face-to-face with his daughter, rachel, when she takes the stand. She has long believed that her father is guilty. Speaking about the case in 2012, on "20/20." You just wake up. And you try to do what you can. And it's living a nightmare. Reporter: Another key family member who could take the stand TODAY, LITTLE eda MacNeill, who was 6 when she found michele unconscious in the bathtub. This morning, they will hold a pretrial hearing. She was there. She saw the body. She was at the crime scene before the cops got there. So, why she's important is, she can potentially undermine martin's claims. Reporter: A family divided on both sides of the courtroom. For "good morning america," aditi roy, abc news, los angeles.
This transcript has been automatically generated and may not be 100% accurate.