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CHICAGO — Easily the biggest (and most recognizable) Cubs fan spoke out against Mayor Rahm Emanuel at a news conference Thursday.

Ronnie “Woo Woo” Wickers said that if Emanuel knew about the video of Laquan McDonald getting shot 16 times by a Chicago police officer, then he should resign.

“If you’re right, you’re right. If you’re wrong, you’re wrong,” Wickers said. “He knows. He knows about the video and everything. Get him out of there!”

The police officer in the McDonald case, Jason Van Dyke, has been charged with first-degree murder. At a special meeting of the City Council Wednesday, Emanuel made a speech where he apologized for the Laquan McDonald shooting.