After 24-year-old Dennis Munson Jr. of Milwaukee collapsed following his first amateur kickboxing match in March, Milwaukee Journal Sentinel reporter John Diedrich got a tip and started digging into what happened. What he uncovered was a series of errors by fight officials in an unregulated bout. The ringside doctor, referee and coach in the corner all missed obvious signs that Munson was in serious trouble, according to a dozen independent experts who reviewed the fight video for the Journal Sentinel. The doctor was looking at his cell phone when he should have been monitoring the fighters. The corner man propped up Munson between rounds and slapped him in the face and was holding him by the neck and face just before he collapsed. And the referee did not intervene to assess Munson. Medical care was delayed over a disagreement on care and confusion about how to get out of the building. Emergency medical protocol was not followed. And then video of the fight, provided to police, was missing 32 seconds at a key time, just before Munson collapsed. The Journal Sentinel investigation uncovered more problems in unregulated kickboxing in Wisconsin. For instance, state regulators attended a match at a Harley-Davidson dealership — but only to oversee boxing events.