If nothing else, we might have a better idea why Tank needed such a large arsenal at home. From the Chicago Tribune’s Charles Sheehan.

Authorities interviewed Bears lineman Terry “Tank” Johnson following the fatal shooting of Johnson’s bodyguard at a North Side nightclub where both men spent early Saturday morning, police said.

Willie Posey, 26, was shot at least once and found lying inside the Ice Bar, 738 N. Clark Street, in the trendy River North neighborhood just after 1:30 a.m., said police spokeswoman Monique Bond.

A fight broke out before the shooting but it was not clear if either man was involved, Bond said. No one has been arrested.

Posey was declared dead at Northwestern Memorial Hospital, according to the Cook County medical examiner’s office.

Johnson, 25, and Posey were charged Thursday after police raided Johnson’s Gurnee home and found a cache of unregistered guns and assault rifles. The Bears have benched Johnson for Sunday’s game.

Johnson was charged with six misdemeanor counts of unlawful possession of a weapon without a Firearm Owner’s Identification card. The weapons seized during the raid included a .44 magnum Smith & Wesson revolver, a .50 caliber Desert Eagle handgun, a .45 caliber handgun, a .308 caliber Winchester rifle and two assault-style rifles–a Colt AR-15 and a .223 caliber.

Posey, who listed the same Gurnee address as his home, was charged with felony possession of marijuana. Police said they found more than 2 ounces of marijuana on a table where Posey was sitting.