On 16 June 2012, the stage collapsed during the setup for a concert by the English rock band Radiohead in Downsview Park in Toronto, Canada.

The hearing began in June 2015, but a mistrial was declared after the judge was appointed to Ontario Superior Court and lost jurisdiction.

In 2019, a Canadian inquest found that the roof had not been strong enough to support the stage equipment and returned a verdict of accidental death.

Later that year, a British inquest found that inadequate technical advice and construction techniques had caused Johnson's death.

On 16 June 2012, the English rock band Radiohead were due to perform the final concert of their 2012 North American tour in support of their eighth album, The King of Limbs, in Downsview Park, Toronto.

[3] Radiohead's drum technician, Scott Johnson, was killed instantly by a falling video monitor weighing 2,270 kilograms (5,000 lb).

[2] In 2013, the singer, Thom Yorke, wrote that completing the tour was his biggest achievement: "I was terrified about it, then it got dark, but in the end we were all very proud of managing to pull it off.

[1] Radiohead's drum technician, Scott Johnson, 33, from Doncaster, South Yorkshire, had also worked with acts including Robyn, the Killers, Keane and White Lies.

[1][8] Shortly after the collapse, Selway wrote a tribute on Radiohead's website, describing him as "a lovely man, always positive, supportive and funny; a highly skilled and valued member of our great road crew".

[4] Other tributes came from artists including Keane,[9] White Lies and Caribou, the Canadian band set to open for Radiohead.

In 2015, Selway, Stephen Morris of New Order and Guy Garvey of Elbow presented a drum kit in Johnson's honour to the Manchester Central Library.

[3][12] The prosecutor, Dave McCaskill, sought to prove that Cugliari miscalculated the weight of the stage roof and its attachments by approximately 7,260 kg (16,010 lb).

"[14] Radiohead's management and Johnson's parents met British members of parliament, who wrote to the Canadian High Commission demanding the case be reopened.

I felt that our silence was a bell that sounded very loudly and I hope people heard it, for Scott's sake and for his family ... We know exactly whose fault it was and they'll be held accountable at some point.In November 2017, it was announced that the chief coroner of Ontario, Dirk Huyer, would hold an inquest into Johnson's death.

[17] The inquest began on 25 March 2019 and ran until April 10, with testimonies from 25 witnesses, including Selway, Optex employees and Johnson's father.

[20] The inquest heard that the roof grid was not strong enough to bear the load of lights, screens and speakers, which weighed roughly 34,473 kg (76,000 lb) and crushed the pickup trusses.

"[21] The five-person jury proposed 28 non-binding recommendations, including the creation of a group to develop and maintain standards and procedures for the live performance industry.