The Randy Blythe manslaughter case was a court case in the Czech Republic , stemming from a 2010 Lamb of God concert in Prague , wherein 19 @-@ year @-@ old fan Daniel Nosek sustained head injuries leading to a coma and subsequent death . During the investigation , Czech police unsuccessfully asked United States authorities for cooperation . When the band returned to the Czech Republic for another concert two years later , its vocalist Randy Blythe was arrested , charged with causing Nosek 's death , and remanded in custody for five weeks .