Sugarland had ` ` ultimate '' control over the stage , ' ' lawsuit says . Seven people died , more than 40 were injured when stage collapsed on fans . The National Weather Service estimated winds at 60 to 70 mph . The suit claims families of four of the seven people who died from the stage collapsed . Sugarland 's representative said the group would offer no comment about the lawsuit .
Sugarland had ` ` ultimate '' control over the stage , ' ' lawsuit says . Seven people died , more than 40 were injured when stage collapsed on fans . The suit claims families of four of the seven people who died from the stage collapsed . Sugarland 's representative said the group would offer no comment about the lawsuit .