Following the tragic stage collapse at the Indiana State Fair last night (Aug. 13) that killed five people and injured dozens of others, rockers such as Nickelback, Hinder, Saving Abel and 3 Doors Down have sent their thoughts and prayers to the victims through Twitter. The horrific incident happened right before country act Sugarland were set to take the stage for a headlining performance. A massive gust of wind caused the stage to collapse on top of scores of concertgoers, resulting in the deaths of at least five people. See how the rock community reacted to the awful news out of Indiana: