In front of a bridge lined with hundreds of cheering spectators, Guinness World Record holder Sailendra Nath Roy began his 600-foot journey by zip line, attached by his ponytail, 70 feet above the Teesta River.

But around the halfway point, it appears that Roy’s famed ponytail got stuck in the pulley wheel, impeding further progress along the wire. After 30 minutes of frantic struggling and shouting of instructions that were impossible to decipher, Roy, 48, stopped moving.

"He was desperately trying to move forward. He was trying to scream out some instruction. But no one could follow what he was saying. After struggling for 30 minutes he became still," said Balai Sutradhar, a photographer who was shooting the stunt, according to the BBC.

The stunt was being performed without permission, and without emergency backup, which resulted in a 45-minute delay in reaching him and bringing him down from the line. He was taken to the hospital, where doctors said he had suffered a massive heart attack.

In March 2011, the man with the world’s heartiest scalp was named the Guinness World Record holder for traveling the farthest distance on a zip wire using hair. Other stunts included pulling a 35-metric ton Darjeeling toy train with his ponytail.

A friend, who asked to remain anonymous, said, "His wife used to urge him to quit doing dangerous stunts. Mr. Roy convinced her that crossing the Teesta River would be his last. Unfortunately, that became his last stunt."

Related story on MNN: 8 of the world's most dangerous daredevil stunts