I completely understand that part of it. My wife had spine surgery two years ago, and had bone ( spine removed) removed.
Was she up and about one week after her surgery?
....and trying to run from the police?
Nope. She was up and doing things around the house. She went back to work within three months. She had to wear a magnetic field collar for almost a year to promote bone growth. But, she didn't just collapse and die. Mr. Gray didn't just collapse and die either, or someone would have said something by now. No one has come forward to explain his death. All we know now is that he was in police custody at the time of the injury, and later died in the hospital. If the cops had nothing to do with his death, why haven't they come out and said so? Why keep it a secret if they had nothing to do with his death?