Looking for information on Chesnut Arabian Gelding-Pride from New York

This horse is not missing, he has passed away and I’m not sure where else to post this. If anyone would like me to move it to a different forum, I’m more than happy to, just tell me which one.
I’m looking for more information on a horse I used to own. Pride was a 15 hand Arabian gelding bought in the state of New York. He was sold to either Cheree Prochnow/Esposito or Anthony Esposito. They originally boarded Pride near New York City, I believe on Staten Island? I purchased the horse from Cheree. Cheree told me she had bought the horse sight unseen, and had him shipped to her. By my math, Pride would have been about 12 or 13 when he was sold to them. Apparently he had one home prior to them. He had been ridden western but was switched to English.
Pride was a very bright chesnut and had a white bottom lip. I have hundreds of photos and video if you think you know him.
He was put down in July 2009 at the young age of 15. It was sudden and very upsetting when he died. New Bolton did a free of charge basic autopsy because they were so curious as to why his death happened the way it did. His death has mystified me for months and I can’t move on until I find the cause. I’m wondering if his history may help.
Thank you so much.