A terrible day

First let me thank you for loving me/our family/Cameron enough to read what is going on with him. Cameron's overall outlook is grim, so I will tell you upfront there will probably not be especially happy news to report, but I will do my best to be upbeat. This is such a difficult time.
In a nutshell, he spent the night at a friend's house we thought we could trust. We picked him up Saturday at 7 pm. He admitted to Mike that night that he had been drinking Friday night and had smoked pot. Mike expressed his disappointment but did not get angry. It was a positive conversation that ended in expressions of love.
Cameron came home that night, did a few chores, took a shower and went to bed about 10 pm. Mike checked on him at 11:30 minutes before we went to bed. He was fine.
We know from his texts that at 2 am he was "tripping on oxy(cotin)." We don't know for sure where he got them or how much he took. He was too out of it at that time to clean up his texts, a routine he religiously performs because he knows we will read his phone. That was the last contact he made with anyone.
I found him Sunday morning about 8:40 am. He was blue, barely breathing, and had a thready pulse. We called 911. His heart stopped shortly after they arrived. We left the house and he was in full arrest. They got a pulse back before he arrived at Riverton hospital. We are guessing he was deprived of sufficient oxygen for about 5-6 hours.
He was blue for a long time, even at the hospital. Riverton stablized him the best they could then LifeFlight came and flew him to the PICU (pediatric ICU) at Primary Children's. The staff here are great, but even they struggled to stablize him.
As of this writing, he is comatose. They have not given him any sedation. His neurological exam is poor, he has no gag reflex. He is on life support. The doctors want to give him 3 days for the swelling in his brain to come down and then they will scan him and see what is left. The swelling will peek at around 36 hours, so things could potentially get worse before they get "better." Anyone reading this needs to clearly understand that IF Cameron lives, he will never ever be the same. So "better" is a relative term. He will never be "all better."
For my nurse friends: FiO2 50% and sats in the 90s. (For hours he was 100% O2 and sats in the 70s.) He is still on hefty doses of epinepherine and norepinepherine. His MAPs are 60s and 70s, up from 40s and 50s. His left lung is a white-out from aspiration (I found him lying on his left side.) His pupils are fixed and dilated; he will move his right arm a little to noxious stimuli. He has not fought against the vent or tried to take a swing at the nurse. He just lays there, comatose. He spiked to 39.4, so they put him on a cooling blanket and started antibiotics.
He is my gentle giant. He had not an ounce of common sense, but his heart was pure. He was a sweet boy who would never hurt anyone, but couldn't figure out how to stop hurting himself. It's killing me that he will never wrap his arms around me again and tell me he loves me. I miss him so much already.
Thank you for reaching out to my family and crying with us. Thank you for helping us with the girls. Thank you for just being there for us.