A man is being held on murder charges for beating for the beating death of another man.
Police are holding Michael Platt, 35, on a first-degree murder charge, after the victim of a knockout punch died of his injuries.
Witnesses say Ryan Flannigan, 26, was trying to break up a fight when Platt randomly punched Flannigan in the side of the head outside of a bar in Palatine on July 18th.
Flannigan fell to the ground and cracked his skull.
He died on Monday.
Platt is due in bond court Wednesday.