Greg Hightower is an Internet predator outed on pedophile-tracking group ScumWatch and their partner, pedophile-sting reality show Hard Focus. Hightower was severely beaten at a bus station to the point of ending up in the hospital. Protesting his rights being violated as much as his safety being compromised, Hightower described the assailant, his car, and even some of his license plate.
Howard Lowe, the assailant, was soon after arrested, hating pedophiles after his daughter was raped and murdered on a school trip. It's unknown what Hightower's status was in the end. (L&O: "Public Service Homicide")