USA Today:  “By the time police in Suffolk, Va., got to the scene of a large street fight on the afternoon of Dec. 14, there wasn’t much to see.  Those involved in the fight had scattered, and witnesses were not talking, police spokeswoman Debbie George said.  Days later, George said, investigators got a break — via YouTube.  Cellphone videos of the fight had been posted on the video-sharing website.  ‘The video itself was very clear,’ George said. Police and school resource officers were able to pick out the suspects.  Seven people identified in the video are awaiting trial.”