At 17, Macklin "Mack" Jensen was getting ready to compete at a national wrestling tournament in Fargo, N.D.
Jensen also played rugby, like his father, Dan, had played years ago, and one of his teams won a national championship June 18 in Colorado.
"He loved life," said Dan Jensen. "Anybody that knew him could see that he had lots of life."
Mack died Friday while participating in "the choking game," also called "space monkey" or "gasp."
The game is typically played by adolescents who strangle themselves or have others push on their chests in order to feel light-headed for a few seconds, according to GASP, a campaign organized by parents of victims to educate about the dangers of the game.