When the sky darkened and the winds picked up at the Indiana State Fair on August 13th, 2011, those fans waiting for country band Sugarland to perform were worried the concert might be delayed. But there was something far more deadly for those in the audience to worry about.

Videos:

• State Fair Tragedy: 10 Years Later
• Indianapolis stage collapse compiled raw footage w/ State Fire radio audio
• Indiana State Fair Stage Collapse - Weather Moments Before
• Sugarland Opens Up About Tragedy
• A STAGE FELL ON ME | Indiana State Fair Stage Collapse
• How the 2011 Indiana State Fair stage collapse lead to major changes in safety at large events

Articles and books:

• 'Forever and yesterday': Remembering the Indiana State Fair stage collapse 10 years later
• LOOKING BACK ON SUGARLAND'S TRAGIC STAGE COLLAPSE 10 YEARS LATER
• Video: Flaming Lips' Stage Collapses in Oklahoma
• $50 million settlement reached in Indiana State Fair stage collapse
• About us: Indiana State Fairgrounds and Event Center
• $39M settlement reached in Indiana State Fair stage collapse case
• Indiana State Fair Commission Investigative Report by Thornton Thomasetti
• Indiana stage collapse: was it preventable?
• Retro Indy: The deadly 1963 Coliseum explosion on Halloween night
• Indianapolis Monthly: The Collapse
• Indiana State Fair 2011 Setlists
• 2011: ISP releases timeline of Indiana State Fair stage collapse
• Fatality inquiry into 2009 Big Valley Jamboree death says standards needed for stages
• Storm at Belgium's Pukkelpop music festival kills five after stage collapses