Shannon Sullivan

Rossi and the team present one of the longest-tenured serial killer cases to college students, and they take the class through a nearly 20-year chase for the murderer. Mackenzie Astin guest stars.

The number comes up for an Internet data broker in the business of eliminating people’s privacy, but finds his own being rapidly stripped away. Reese tries to protect him as his life is being dismantled by an unknown assailant and spiraling out of control, while Finch calls on Shaw, Carter and Fusco for help in finding whoever is after him. Meanwhile, the demoted and uniformed Carter finds herself unexpectedly paired with her new rookie partner, Mike Laskey (guest star Brian Wiles).

Schneider's brush with death may have changed forever his freewheeling, happy-go-lucky, macho lifestyle.