Saw on the news he had some blood vessel rupture a few days ago and is now paralyzed.
Found this article on Pinkbike: http://www.pinkbike.com/news/wishing-andrew-cho-a-speedy-recovery-2017.html
When he stood up, the blood vessel had reached its tipping point. The trapped blood applied so much pressure to his spinal cord that it paralyzed him from the neck down.
Despite so many things going wrong with the situation, there were many fortunate events that saved Andrewâs life. His phone landed ten inches from his body. In an amazing feat of strength and survival, he was able to inch toward his phone using only his chin. After five unsuccessful attempts, he was able to use his tongue and with the help of Siri, dial 911.
When first responders arrived, he was rushed to VGH where he underwent a 4-hour emergency surgery to relieve the pressure on the spinal column.
There's a GoFundMe page for him as well: https://www.gofundme.com/andrew-chos-medical-fund