In September of 2019, almost a year after Amy's murder, family and friends packed the Dubuque County courthouse as lead prosecutor Maureen Hughes described what she says happened to the woman they knew so well. Todd Mullis was arrested and charged with Amy's murder.Īt trial, would Trysten's testimony save his father? GRIEVING HUSBAND OR SUSPECT? But the number of puncture wounds, combined with the couple's marital problems, led investigators to think otherwise. His son told police he was with his father working in the hog barn when Amy was injured. Todd Mullis told investigators that he didn't know what happened and that he assumed she fell on the corn rake. 'This is not a long-distance gunshot,' says Matthew Troiano, a legal expert hired by '48 Hours' to look at the prosecution's case. 'You know, she was … very bubbly, outgoing. 'Everyone knew Amy Mullis,' says Dina Nesheiwat, a legal expert hired by '48 Hours' to look at the defense's case.

A divorce could have split the family apart and might have meant the loss of the farm, which was worth millions. The investigation revealed what had appeared to be a good marriage was actually one fractured by Amy's affairs. However, Todd Mullis had an alibi – their 13-year-old son. Police started investigating Mullis' husband, Todd Mullis, after learning she was considering leaving him. The farm tool had four steel tines, but doctors who examined her found six puncture wounds. She was face down with a corn rake sticking out of her back. It was a fall day in 2018 when Amy Mullis was found grievously injured on her family farm in Earlville, Iowa. This story originally aired on September 26, 2020.

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