TONIGHT: Karen Read, accused of killing her boyfriend, a Boston Police officer – the 20/20 interview and exclusive personal video. The ALL-NEW event special premieres Tonight at 9/8c on ABC. And stream on Hulu. | ABC 20/20

He became a key witness in Karen Read's first trial. Now in his first sit-down interview since appearing on the stand in June 2024, Michael Proctor discusses some of the questions raised in court. Speaking with ABC News’ Matt Gutman, Proctor addresses questions raised by Karen Read’s defense team during her first trial that fragments from Karen Read’s taillight may have been planted at the John O'Keefe crime scene. “It’s such a ridiculous accusation,” Proctor told ABC News. Prosecutors argued at