Federal officials continue to investigate the deadly air show crash on Saturday that took the lives of a wing walker and the pilot.
Thousands were watching the biplane at the Dayton Air Show as it glided through the sky then rolled over, crashed and exploded into flames. It wasn't clear what had gone wrong.
The Dayton Daily News reports that The National Transportation Safety Board plans to release an initial report this week. The exact cause of the accident may not be known for months.