COLUMBUS, Ohio (WSYX) — A Central Ohio serial killer, Shawn Grate, takes center stage in an all-new episode of “20/20 True Crime,” airing tonight. Grate, who was sentenced to death, is expected to be executed in 2025, although appeals are still pending.

Terri Sullivan spoke with ABC’s John Quinones about the episode, which delves into the chilling details of Grate’s crimes. Quinones said, “What was it about this case that caught your attention? I know you’ve been following and reporting on it so closely over the years, but the rest of America is about to find out tonight just how compelling and puzzling this case is. case and for reaching its implications, and the fact that this man was a serial killer.”

The episode highlights a harrowing 911 call from a woman named Jane Doe who was being held captive by Grate. Describing her as a hero, Quinones said, “She’s a real hero in all of this because she had the wherewithal to keep whispering, trying to come to the police’s aid, but then the phone line goes out.”

Another key figure in the investigation was veteran detective Kim Mager.

“She sat with her dogged determination, and with her psychological instinct, you see her sitting in the interrogation room with Shawn Grate for eight days,” Quinones said.

The special edition of “20/20 True Crime,” titled “Meet the Other Me,” airs Friday at 9 p.m. on ABC 6.