Sam set out in January on a 12,500mi proposed route he called the “All-In Trek”.
Many were dubious he’d be able to complete such an ambitious project without much previous experience.
He even suffered scorn and abuse on White Blaze.
On March 6th, day 64:
Today I made a very hard decision. I have chosen to leave the trail to seek medical care.
He’s currently documenting his recovery and formulating a plan.
besthike.com 
Injuries are the X-factor of any backpacking trip because there’s no way to train effectively for the distance w/out walking the distance. I figure he did pretty well staying out for two months; I stopped by his blog the other day and noted he was taking a break. If you’re hurt, you’re hurt.
Doubters assume he won’t be back.
But lets wait and see.
He’s a nice guy, but had as much chance of completing this trek as I have of playing basketball for the LA Lakers. After over two months, he hadn’t even made it out of the first state. So I hope he comes up with a much better plan, such as: 1) More hiking less talking; 2) Quit the insane hype and instead just go out there, and connect with nature and yourself in some way that is real.