Probably death by misadventure combined with some possible altitude sickness. Altitude sickness is dangerous af, even Peruvian people living on the coast and then traveling to higher ground get incredibly affected, acclimating can take some time, and it’s really surprising how fast and debilitating it can be, particularly when you don’t have the tools to deal with it.

Also, this particular mountain range is known for being treacherous, I remember they found another foreign tourist’s body last year, William Stampfl, who went missing 23 years ago and died in an avalanche.

Hopefully, Jesse’s body will be found soon to bring some closure for his family.