Iain looks at the unbelievable true story of the Powderhouse Blast, which took place in South Dakota in 1936. It’s a story involving a dynamite explosion, an heroic escape, and a man on the run.

Murder They Wrote with Laura Whitmore and Iain Stirling is available twice a week on BBC Sounds. Subscribe now so you never miss an episode. Email us at lauraandiain@bbc.co.uk