My wife is currently fighting cancer (on our third cycle of chemo this month). So sadly I know how cruelly it can threaten the people we love. I am deeply sorry for what your family is going through. I did not know Josh very well. But we were friends when we were young boys. He was, even then, fiercely concerned about the people around him and compassionate in how he moved through the world. I keep a particularly strong memory of him traveling a far distance to my house--from Indian Springs to the Coweta line--all in service of bringing me missed homework.
He was a kind & giving soul. Of which there are too few in this world.
With deep and heartfelt sympathies to him and his family.