Mine Superintendent Who Pled Guilty to Conspiracy Charge Awaiting Sentencing

Was accused of disabling monitors, falsifying records in a West Virginia mine

A former superintendent at West Virginia's Upper Big Branch mine — where an explosion killed 29 — will learn his fate after pleading guilty to a federal conspiracy charge.

Gary May will be sentenced in federal court Thursday. He's cooperating with prosecutors in their ongoing criminal investigation of the 2010 explosion that killed 29 miners at the former Massey Energy operation.