I love hearing heartwarming stories like this.
Living in Montana and just a couple hours from Yellowstone, every summer I hear about the dumb motherfuckers who approach the Bison or Grizzlies. Go off trail to get near a thermal feature.
So when they meet their fate because of their own stupidity and can't follow simple directions, I love it. Plus if you've ever been in the park when shit like this happens, it causes major traffic back up.
So fuck him, his sister and anybody else that can't follow simple instructions meant to keep them safe.