Man Hit Girlfriend With Truck, Cut Off Her Leg

A Madison County judge has sentenced a former Washington Park man to 60 years in prison for chasing down his girlfriend in a truck.

Man Murders Girlfriend

Richard Mayor intentionally hit his girlfriend, cut off her leg, and left her to die on the side of a highway.

Mayor, 60, was found guilty of first-degree murder for intentionally striking Lisa Dunnavant-Polach, 46, with his pickup along a highway in Pontoon Beach on Feb. 21.

According to Madison County State’s Attorney Thomas Haine, the all-female jury took just 40 minutes to return from deliberation with a verdict.

He was sentenced to 60 years in prison on Tuesday.

A Look Back At What Happened

At the time of the murder, Dunnavant-Polach was walking along Illinois 111 and trying to evade Mayor, who was driving a pickup.

A witness was driving a tractor-trailer nearby when he saw Dunnavant-Polach in distress and pulled over to help her. When she tried to jump into the semi, she was hit by Mayor’s pickup.

The former marine testified that he pulled the microphone wire off his CB radio and used it to tie a tourniquet on Dunnavant-Polach’s severed leg after she’d been struck.

Dunnavant-Polach told the good Samaritan that her boyfriend was at the wheel of the pickup.  

Mayor fled while police and others rendered first aid. She was taken to a St. Louis area hospital and later died from her injuries.

This Isn’t The First Time Mayor Committed a Crime

According to court documents, Mayor has a criminal record going back to a felony weapons conviction in 1989. He also has convictions for battery, drug-related offenses, sex offenses, and other crimes.

At the time the original charges were filed Mayor was also listed on the Illinois State Police sex offender database as living in Washington Park under one of his other names.

He has a conviction for aggravated criminal sexual assault out of Madison County. The victim was 4 years old at the time, and Mayor was 30.

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