By Daily Mail Reporter PUBLISHED: 12:59 EST, 29 October 2013 | UPDATED: 22:00 EST, 29 October 2013 Both the Mormon doctor's mistress and his daughter who was only 6-years-old at the time of her mother's death have revealed more stunning details in Michele MacNeill's murder trial. On Tuesday, the court watched a 2008 videotaped police interview with the family's youngest daughter, Ada MacNeill, who found her mother in the bathtub after returning from school with her father. She said her strongest memory was finding the bath water had turned brown. 'We found her in the tub,' Ada MacNeill told the investigator about 18 months after the death. 'She was still in clothes.'
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Gypsy Willis and Martin MacNeill had a 'casual' 15-month affair before his wife Michelle died in their bathtub in April 2007
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Prosecutors claim he pressured his wife into getting a facelift so he could kill her with prescription drugs afterwards and continue the affair
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Willis testified on Tuesday that he proposed within months of Michelle's death and gave her a $7,000 diamond ring
A drug expert testified last week that @placeholder had four nervous system depressants in her blood that would have had a powerful knockout effect.