My dad or rather niece and nephew lost two horses just couple months ago by what looks like happened to this feller....standing under a tree and hit by lightening. They were some tore up kids for a while.
Used to work at a game farm. Watched lightening hit a tree with 4-5 red deer under it. One literally jumped 18 feet in the air and slammed back to earth dead as a door nail.
Oh man! Now you probably have guys looking up how to electrify a sign post rub! lol
When I was a kid we lost 6-8 cows that were huddled under a tree when it got struck by lightning. Unfortunately one was the beloved giant bull that thought he was a teddy bear.