Charleston County Coroner Rae Wooten said today that a lengthy, intensive investigation has failed to reveal why mixed martial arts fighter Tyrone Mims died after an August bout in Mount Pleasant.

Wooten said investigators conducted numerous tests, exams and drug scans and came up with no explanation for why Mims fell ill and died.

“We spent a lot of time trying to overturn every stone in this, but we could not find an explanation,” she said.

Mims, a 30-year-old father of five from Augusta, died after fighting Blake Poore of Charleston at the Omar Shrine Convention Center in Mount Pleasant.

Observers said Mims appeared fine during the fight, other than getting tired, but collapsed in the locker room afterward and soon died.

A ringside doctor said there was no sign that anything in the fight contributed to Mims’ death.

Reflecting Pool Productions was filming Mims and other members of The Augusta Fight Club for a TV reality show called “Georgia Boys: Grits and Glory.”