A rescuer who was the last person to see a man suffer the 'worst death imaginable' after he became stuck upside down in a cave has revealed the heartbreaking reason why he could not save him.
John Jones died after becoming trapped for more than 24 hours in the Nutty Putty Cave in Utah in 2009 after he and his friends decided to explore it.
The 26-year-old medical student, who considered himself a keen and experienced explorer, was described to have 'essentially crawled into his own grave' upon his death more than 15 years ago.
After setting out to explore the extremely tight 'Birth Canal' area of the cave, John, who stood at 6ft tall, took a wrong turn and mistakenly entered a tiny passageway head-first which measured just 10 inches by 18 inches and became stuck.
Trapped in the crevice and unable to turn or move backwards, the 26-year-old father endured '27 hours of claustrophobic hell' while his brother Josh could only watch on helplessly.
