I think this person may have been an amputee before the bombing. I’m not reading into conspiracy theories or anything, just basic things that seem obvious. This man, who apparently had both legs blown off, was wheeled away from the scene in a wheel chair, after people with lesser injuries were stretchered out. There wasn’t the massive amounts of blood all over the pavement and the victims, that would come with this kind of injury. He barely has any blood on him! It would be squirting out in pints and he would look very pale/grey. He would most prob die from injuries like this, he wouldn’t be able to sit calmly in a wheelchair!
Also the trauma and shock would most likely mean that he couldn’t identify a suspect, he wouldn’t have been looking at anyone suspicious in the crowd at the time before the bomb, would he?
Seems like a planted hero/icon for the people, though I don’t know why. I don’t know much about conspiracies, its just what I’ve seen in the photos. My friends who are medics agree with the strangeness of the situation.