The defense says that Michele MacNeill's death was an accident and that she died of natural causes.

Conflicting timelines
Martin MacNeill says he has an alibi because he was at work the morning of his hatsune miku cosplay  wife's death.
According to an affidavit, Martin MacNeill dropped his youngest daughter, Ada, off at school at 8:30 a.m. on April 11. At 8:41 a.m., Alexis MacNeill called the home phone. Three minutes later, Michele MacNeill called Alexis MacNeill from her cell phone. According to Alexis MacNeill, her mother was in good spirits and optimistic about her future with Martin MacNeill.
Martin said he went back to work around 9 or 9:30 a.m. He says he left his wife alone for approximately two hours. At 9:10 a.m., Alexis MacNeill received a phone call from her father, who called from his office phone. He asked his daughter to check in with her mother because "Michele was not listening to him and getting out of bed." Starting at 9:14 a.m., Martin MacNeill called his wife's cell phone with no answer. Several subsequent calls were made with the same result.
Did doctor use medical know-how to kill wife?
Legal documents state that Martin MacNeill was supposed to be working at a booth that day for the Developmental Center Safety Fair associated with his work, but he did not show up when he was supposed to. Employees say they do not know where he was from approximately 9:30 to 11 a.m. At 11 a.m., Martin MacNeill arrived at the safety fair. According to legal documents, witnesses say he was intent on getting his photograph taken there and appeared "short tempered" and "belligerent."
Martin MacNeill left to pick up Ada at about 11:35 a.m. According to documents, they arrived home between 11:35 and 11:46 a.m. Martin MacNeill went to the kitchen, and Ada went to find her mother.
Ada said she found her mother fully clothed in the tub with her head next to the tub's faucet, above reddish-brown water. She estimated the water was about one-quarter of the way up the tub. Her mother's hair was floating toward the drain. Ada went to get her father.
Martin MacNeill's recounting of how he found his wife is strikingly different from Ada's and will be something prosecutors focus on to show MacNeill's alleged lack of veracity. He told authorities his wife was draped over the side of the tub, head first, with her head in the water. Autopsy results later showed Michele MacNeill's blood had pooled after death toward her lower extremities, which gives credence to Ada's version and discounts Martin MacNeill's. According to legal documents, Martin MacNeill told paramedic Marc Sanderson that his wife overdosed on medication and that was the cause of her death.
In an interview, the girlfriend of Martin MacNeill's son Damian, Eileen Hang, told authorities that Martin MacNeill directed her to discard all of his wife's medications upon returning home from the hospital the day Michele MacNeill died. Additionally, the journal that Alexis MacNeill had used to keep a running tally of her mother's medications after surgery mysteriously disappeared.
The trial begins with jury selection on Tuesday, and although prosecutors have laid their case out with numerous legal filings and a 2012 preliminary hearing, the defense has won many pretrial arguments keeping out statements  akatsuki cosplay   and actions by Martin they feel are prejudicial and irrelevant.