Info I got about the video says that a street hawker (Camelô) was shot by police who left him there to bleed. He is seen being comforted by passersby while, I presume, they wait for an ambulance.
Blood loss seems quite significant. It would appear that he was shot in the upper back. He’s not showing any signs of life but the people are not ready to give up on him. Whether he pulled through in the end, I do not know.
Nothing good ever comes out of police being too happy to use their little guns.