NFL Connections #87, Answers
The full solution: all four groups and the 16 names, sorted from the easiest group to the trickiest.
Returned a kick for a Super Bowl TD
Desmond Howard, Devin Hester, Jacoby Jones, Percy Harvin
Scored a defensive Super Bowl TD
James Harrison, Tracy Porter, Dwight Smith, Robert Alford
Rushed for 100+ yards in a Super Bowl
Timmy Smith, John Riggins, Terrell Davis, Larry Csonka
Won multiple Super Bowl MVPs
Bart Starr, Eli Manning, Tom Brady, Patrick Mahomes