Sean Gannon (RIP) the Boston Cop Who Beat Kimbo Slice, they had to Carry Kimbo out of the RI Gym!

The Man Who Beat Kimbo: Sean Gannon's Story

Former MMA and Boston Police Officer Sean Gannon has passed away

RIP Sean “Gladiator” Gannon

Mother Of Sgt Sean Gannon Calls For Changes

Surface Warfare Officer - LT Sean Gannon

Sean Gannon (RIP) Heavyweight Bareknuckle Champion, Boston Cop who Beat Kimbo Slice