"The backpack had wrapped around his neck and he was unconscious, dangling 10 feet above the snow".
In an Instagram post describing the event, Wilson said the unidentified skier lost consciousness from being strangled, and that Wilson's group of friends started to panic after lift operators told him they couldn't run the lift in reverse.
He "threw me a knife and I luckily caught it on the first try and cut the strap".
Mickey Wilson makes his living as a slackliner - a type of tightrope walker known for acrobatic tricks - and says he got less nervous once he acted.
Wilson told a Denver newspaper it was one of the most frightening things he had ever seen.
"I climbed the tower and slid down to the the chair". Workers stopped the lift and dispatched ski patrol to the scene.
Wilson, who was on the chair behind the man, told the Denver Post: 'As he tried to get off, his backpack caught, and because he was on the outside of the chairlift, he went around the emergency chairlift shutoff [trigger].
"I think hero is a weird word, I think if I hadn't done it, ski patrol would have been right on my tail getting him down too", he said.
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A professional slackliner saved his friend's life in a skiing incident.
Mickey said the man he saved wants to remain anonymous but was released from the hospital Friday morning with just a few broken bones. Video captures Wilson trying to kick his friend out of the backpack.
Mickey Wilson said it was terrifying to watch the life drain out of the man, but he soon climbed up one of the towers, walked across the cable and caught a knife tossed to him by a ski patroller on the ground.
Wilson, 28, is a part-time ski instructor at the resort, though he was not working at the time.
A preliminary investigation into the matter found that the man on the lift was wearing a backpack, which was "attached to his person", Isaac said.
According to The Denver Post, on Wednesday, a man on the ski lift was attempting to exit the lift when his backpack got stuck in the chair. He climbed up a tall, nearby structure and then climbed across the lift's guide wire to reach his friend.
Wilson said his slacklining experience made the rescue possible.
The rescue is the second serious incident occur on ski lifts in Colorado in just over a week. Two girls, who were the woman's daughters, were also hurt after tumbling off the lift. The lift reopened Wednesday, and was open to the public on Thursday.