Woman rams into her boyfriend during argument and kills him, police say

Casa Grande Police responded to a collision involving a vehicle and a pedestrian on May 20 near Cottonwood Lane and Pinal Avenue around 8:30 a.m.

When officers arrived at the scene, they discovered the victim, 59-year-old Billy Stephens, "lying near the roadway suffering from what appeared to be significant trauma."

CGPD says the suspect, 51-year-old Shelly Shears, was at the scene near the victim.

"Detectives discovered significant evidence to determine Shears and Stephens were in a verbal argument prior to her striking him with her vehicle," CPD officials stated.

Stephens was transported to an area hospital where he later died, and Shears stayed at the scene to talk with officers before being arrested.

"Shears was booked into the Pinal County Adult Detention Center and charges of second-degree murder will be forwarded to the Pinal County Attorney's Office for review."

Map of where this happened as well as other incidents in the area: