OK. He sued in May 2007. Even if we assume that (a) he sued the day after whatever incident happened (unlikely) and (b) the lawsuit related to a car accident (we don't know), whatever happened happened at least eight years ago. That doesn't exactly support the blog's contention that he had spinal surgery a week ago. Heck, the blog admits as much:
Is it possible that Freddie Gray was in fact involved in a car accident previously in his life in which he was severely injured, never to be the same again? Yes, it is possible.
Is it possible that Freddie Gray allegedly received a settlement from this injury, one which he later attempted to convert to a lump sum payment? Yes, it is possible.
Is it possible that Freddie Gray allegedly had a history of back problems that required multiple, even if minor, surgeries that left him with a vulnerable spine? Yes, it possible.
Any argument that begins "Is it possible that [X] happened?" is really saying "I have no evidence that [X] happened, but REALLY want it to be true."
But, I think it would be helpful for everyone to remember that the investigation is continuing. The medical examiner WILL have access to Gray's prior medical history, and the post-mortem examination should be able to answer a lot of these questions.
I'd wait until that report is issued before discounting any theory or rendering judgement.