Well I guess I answered my own question. Sure this site hates all of us but I have no reason to doubt the statistics. Good that somebody is on top of it but pretty shocking actually. Unfortunately most bettors turn a blind eye to this kind of info. A racing form is much better for them.
At least my state looks good..
New Jersey
Monmouth Park: 3 dead racehorses
The Meadowlands
Freehold Raceway
Far Hills Steeplechase: 1 dead racehorse
One thing is clear, Harness racing is a hell of a lot safer for horse and driver. That is why they can race for 15 years.
2019 carnage.
https://horseracingwrongs.org/killed-2019/