A woman was taken into custody following the death of her boyfriend in a vehicle collision on Saturday morning, according to the Casa Grande Police Department.
At about 8:38 a.m., police responded to a motor vehicle versus pedestrian collision near Cottonwood Lane and Pinal Avenue, where they located Billy Stephens, 59, lying near the roadway in serious condition.
Stephens was then flown to a nearby Phoenix hospital where he was later pronounced dead, police said.
Shelly Shears, 51, was at the scene near Stephens before being taken into custody on suspicion of second-degree murder, which has been forwarded to the Pinal County Attorney’s Office for review.
According to authorities, Stephens and his girlfriend, Shears, had a domestic dispute, which led to the eventual vehicle collision.
After further investigation, detectives discovered there was “significant evidence to determine Shears and Stephens were in a verbal argument prior to her striking him with her vehicle,” according to police.
The investigation remained ongoing, according to authorities.
This article originally appeared on Arizona Republic: Casa Grande woman arrested on suspicion of fatally striking boyfriend with car