Todd Mullis, 42, was charged with first-degree murder on Thursday in Earlville, Iowa
A farmer has been accused of murdering his wife by stabbing her in the back with a corn rake.
Todd Mullis, 42, was charged with first-degree murder on Thursday in Earlville, Iowa over the November 2018 death of his wife Amy Mullis, 39, on the farm where they lived with three children.
Todd told police at the time that his wife must have tripped and fallen on the rake, dying accidentally.
But the coroner determined that while the corn rake had four tines, Amy had at least six puncture wounds, indicating she had been stabbed repeatedly. Her death was ruled a homicide.
In a detailed arrest warrant affidavit reviewed by DailyMail.com, Delaware County Sheriff's Office investigator Travis D. Hemesath lays out the meticulous investigation and damning evidence that led to Todd's arrest.
Todd and Amy Mullis married in 2004, and lived together on their large farm with three children, two sons ages 13 and eight and an 11-year-old daughter. They are seen in 2017
Though the couple put on a happy face, police say that Todd had confronted Amy about an affair in 2013, and that he discovered her cheating again with a man he knew last year
The couple lived on this farm in eastern Iowa. The two large white buildings are hog barns
Todd and Amy married in 2004, and had two sons ages 13 and eight, and an 11-year-old daughter. The family of five lived on their large farm in eastern Iowa, raising corn and hogs.
Family photos from Facebook show what appears to be a happy family, doting over their children as they showed off hunting trophies and awards for gymnastics and 4-H club.
However, Todd revealed a darker side to the marriage in interviews with police, admitting that he had caught his wife in an affair with another man in 2013.
At first, Todd insisted that he had never had a reason to suspect his wife of another affair, and that they had patched things up and had a strong relationship at the time of her death. But investigators discovered that was not the case.
Amy had been engaged in a second affair with another man that the couple both knew since May of 2018, according to investigators.
The man told police that Amy had confided that she wanted to leave Todd, but was 'scared to death' of what her husband might do.
'If he catches me, he might make me disappear,' Amy told her secret lover in the summer of 2018, according to the affidavit.
Amy, seen above in 2014, told one friend that she feared Todd would kill her and leave her to the pigs if he discovered her secret love affair
In August of 2018, police say Amy told another friend that if she disappeared, 'You'll know Todd did something to me.'
Another friend stated that Amy said that Todd would kill her and throw her to the pigs if he ever discovered the affair
On the week of October 22, a friend told investigators that Amy had called crying and screaming, saying that Todd had discovered her affair. Amy said that one of her children was refusing to get on the school bus, for fear that she wouldn't be there when the child returned.