This is a news account of a recent fatality within Grand Canyon. I believe we were discussing how to hike in the heat (or not) just recently.
Grand Canyon National Park has a very active and proficient Search and Rescue operation, but outside help can only do so much individual actions and decisions can avert tragedies like this and render outside assistance unnecessary.
Of course, Federal legislation should be enacted, making dying within a National Park a severe criminal offense, with appropriate penalties....
one or more gifts or other benefits from the co-op.