Johnson County prosecutors have charged a man in the death at an Edgerton bar Saturday night.
Gregory B. David Cooper has been charged with second degree murder in the death of Tyler Matthew Knudsen.
He was killed at Boxcar Bar and Grill, located at 100 E 2nd Street.
Cooper also swung a pool cue at another man, according to the criminal complaint.
Cooper's bond is set for $250,000 and he is expected to appear in court on Dec. 30 at 11:30 a.m.
Johnson County deputies are conducting a death investigation.
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