There is precedent for being charged with animal cruelty when a dog dies of heat exhaustion on a hike. It happened in 2017. The dog died, and the humans were suffering as well but were rescued in time. I’m not sure it would’ve been charged in this case, had the parents survived, but there are “bad facts” in the EC/JG tragedy: little water, no bowl, and areas with no river water access, plus extreme heat that kills even with enough water, and relatively advanced age in a thick-coated dog.
Woman cited for animal cruelty after dog dies on Scottsdale hike | 12news.com
From 2017 case:
“It's too hot to breathe almost," said Scottsdale dog owner Sean Rawlings. "It sounds like someone doesn't have any common sense."
Scott Hamilton [is] the planner for the City of Scottsdale's McDowell Sonoran Preserve, which is home to the Lost Dog Wash Trail. He said the area can be difficult.
"The Lost Dog Wash trail is typical of (the) preserve. It's mountainous, rocky and there's very little shade," Scott Hamilton told 12 News.”