By James  Nye PUBLISHED: 02:41 EST, 10 March 2014 | UPDATED: 07:27 EST, 10 March 2014 Ex-member: Former Diamond Mountain member Sid Johnson told NBC's Dateline about the bizarre practices of the retreats leader Michael Roach A new investigation into a mysterious Arizona yoga retreat - likened to cult - and the death of one of its members alleges the Princeton-educated leader condoned bizarre tantric sex rituals at his camp. It was the death of Stanford-graduate Ian Thorson from exposure and dehydration in the desert after he had been expelled from his love rivals Michael Roach's Diamond Mountain in June 2012, that shone at light on the shady religious practices of the Buddhist community.
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New investigation claims that Buddhist monk Michael Roach is engaged in bizarre sexual rituals at his Arizona yoga retreat
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Ian Thorson died from exposure after fleeing Buddhist retreat with his wife
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Ordered out of the retreat after revealing she had stabbed him 'by mistake'
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Thorson was the love rival of Michael Roach, the Princeton-educated monk who ran the retreat
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Roach had been secretly married to Thorson's wife
Three of @placeholder’s caretakers set out to look for her and Mr. Thorson, but could not find them.