CINCINNATI (AP) — A southwest Ohio grand jury has indicted a 41-year-old man on murder charges in the slaying last month of a Kentucky woman on Interstate 75.

Warren County Prosecutor David Fornshell said Monday that Terry Froman of Brookport, Illinois, could face the death penalty if convicted of aggravated murder. He was indicted on two aggravated murder counts, two kidnapping counts and a firearms discharge count.

Froman was arrested Sept. 12, accused of killing his estranged girlfriend's son in Kentucky, kidnapping her and then killing her on I-75. Authorities approaching the car stopped on the side of I-75, some 30 miles north of Cincinnati, said they heard multiple gunshots.

Police said Froman had a self-inflicted gunshot wound, and the body of Kim Thomas, 34, was in the back of his vehicle off the interstate, which police had shut down. He was treated at a hospital and later jailed.

Froman also faces charges in Kentucky of murder and kidnapping. Authorities said Thomas' 17-year-old son, Michael Mohney, was found dead at her Mayfield, Kentucky, home, triggering the search for Thomas that ended in southwest Ohio.

Fornshell said he and Graves County Commonwealth's Attorney David Hargrove have been in regular communication about the case.

"Because he's (Froman) already here, it makes the most sense for us to proceed here with our case first," Fornshell said.

Froman has been held in Warren County Jail on $1 million bond. Court records don't show an attorney for him. He has a court appearance scheduled tentatively for Wednesday.

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