That is tragic, but i have seen and heard of alot of these accidents, but not like this, usually involving cars and buggies..
Was working one day in bedford, indiana and seen the torn up buggy and the dead horse in the middle of the road, the cops shot the horse to put it out of it misery, still have that picture in my head..
I work alot up in northern indiana also, lots of amish... Believe it or not amish like to party and they get real drunk and guess what happens... The horse always knows his way home, but the horse does not know to stop at stop signs.. to say the least alot of amish and horses have died from drunk amish partiers... sad situation..