20+ years ago when I was still in high school and in JROTC we actually had an honor guard that did funeral services locally. It's been too long ago and I don't remember why we were doing it and not actual military units, but I remember doing maybe a dozen during my So-Sr years. My understanding from a few articles I've read on this kid is that for a full fledged military honours funeral the military covers portions of the funeral expenses or supplies certain things like the marker. I don't know that all that should be done since after all he wasn't actual military, and resources are limited, but I don't see anything wrong with his JROTC unit or a volunteer unit from a local guard or ROTC unit serving as an honor guard and performing just a simple ceremony.