The world of professional wrestling was rocked over the weekend, as three former wrestlers died in a short period of time. Brian Christopher, or Brian Lawler, died after hanging himself in his Tennessee jail cell. Josip Peruzovic, better known as Nikolai Volkoff, also died over the weekend at 70. And a wrestler known as Brickhouse Brown died as well. Brown, whose real name was Frederick Seawright, had been battling prostate cancer