CHICAGO — Police do not have a suspect in custody for the shooting death of the friend of Chicago Bears defensive tackle Tank Johnson, officials said Sunday.

“We’re not talking to any one individual,” said Chicago police spokesman Officer Marcel Bright.

Police and Johnson attorney Thomas Briscoe have said the player is cooperating with the investigation into Willie B. Posey’s death. Johnson and Posey, 26, were at Ice Bar around 1:30 a.m. Saturday when an argument began and Posey was shot, officials said.

“Tank Johnson has absolutely no responsibility for this tragic shooting,” Briscoe said Saturday. “He lost a very close friend.”

Johnson and Posey had appeared in court less than 24 hours before the shooting, following a raid at Johnson’s home in north suburban Gurnee.

Posey was arrested Thursday on a count of felony cannabis possession. He was released after posting bond and had been scheduled to return to court Dec. 21.

Johnson was not at home during the search, but later surrendered and was arrested on misdemeanor weapons charges because six unregistered firearms were found at his residence, police said. He was released after posting 10 percent of his $1,000 bond.

Bears Coach Lovie Smith had already decided before Posey’s death that Johnson would be inactive for Sunday’s game against Tampa Bay.

Johnson is scheduled to appear in court Jan. 9 on the weapons charges, the player’s third arrest in 18 months.

In November 2005, Johnson was sentenced to 18 months’ probation and 40 hours community service after pleading guilty to a misdemeanor charge stemming from an arrest in which a nightclub valet reported seeing Johnson with a handgun in his sport utility vehicle.

Johnson also was arrested last February after a confrontation outside a Chicago nightclub, but the charges were dropped after the police officer he allegedly scuffled with decided not to pursue the case.