This fatal accident was caught on CCTV cameras overlooking Avenida Darcy Vargas in Manaus, capital city of the state of Amazonas in Brazil on May 8, 2012.
From the video it looks like a group of 3 motorcyclists approached a curve at a high rate of speed and one of them hit the curb. The wipe out that followed was fatal. Several motorcyclists that came to the curve next immediately stopped to offer assistance and a few seconds later, even the victim’s two mates with whom he sped down the avenue returned, creating further conditions for a follow up accident by riding in the opposite direction up the same curve.
Police and medics seem to have gotten on the scene quickly, but it took them a long time to deal with the fatality. You can see the change from night to day while they’re fiddling around on the road.