Radiohead Stage Collapse: Live Nation, the company that organized the concert, did not immediately return calls

Radiohead Stage Collapse: Band Responds To Death Of Drum Technician Scott Johnson:

TORONTO -- Investigators combed through the wreckage of a Toronto stage Sunday to determine what caused the structure to come crashing down ahead of a Radiohead concert, killing the band's drum technician and injuring three other crew members.

The British band said it was devastated over the death of Scott Johnson, a U.K. citizen in his 30s who was trapped under the rubble and pronounced dead at the scene.

'via Blog this'He said the investigation is "fairly complex" and it could take some time to figure out exactly what happened. Blajer said they have three inspectors and two engineers going through the wreckage. They were provided with engineer drawings.

Vella said criminal charges could result but added that it's early in the investigation.

Live Nation, the company that organized the concert, did not immediately return calls seeking comment Sunday.

Officials from the Ontario Ministry of Labor searched through the wreckage for clues to the cause of the collapse Saturday in Downsview Park. They were also investigating whether safety regulations and standards were followed and if staff were properly trained.

There have been a number of concert stage collapses in recent years.