Excrement happens, and then you die... read on...
I don't preach, and I am not a church-goer; I have never witnessed and never wish to witness such a thing, but as a driver with well over a million miles under his belt I have witnessed enough carnage to know that there but for the grace of God go I, and I have walked away from one I should not have...
A piece of advice from beyond the grave... I am sorry to say this as you live in a country where many can freely carry arms, and as it is becoming more common here, through illegal weapons, but I am often reminded by something my late father said to me years before I started writing up his stories...
"A person who does not believe in God has never been in fear of his life; I believe in God; there are no aethiests on a battlefield..." Kenny Stewart Senior
Not an easy one, Scott; I can only hope you sleep well, as that is when you are going to "process" this, and tomorrow is a brand new day; have a word with "the BIG man", wish the departed on their way, ask for protection for your loved-ones and nothing for yourself other than peace, leave the rest in his hands...
I do not believe in "God", but I believe that there is more to life than this...
My thoughts are with you...