My son took to hunting early, killed several deer including a good buck in Missouri. Rifle kill of course when he was 12. But his allergies were so bad a weekend hunting meant a week of sick, breathing treatments and often, an ER trip. So it just didn't work. He works with me part time now and we share in other activities. Just tree pollen, oak and cedar tear his airways up.
Sorry to hear about your other son Kenny. All of us dread the thought of something like that yet sometimes that is a cross we are given to bear.
Those fletching should be quite visible. But hopefully a little bloodier when you find them.