Question About Michael Brown Leads to Beating

Turbulence has taken hold in Missouri.
When one man sat down next to a second man in a St. Louis light rail car and asked him his opinion on the shooting of Michael Brown, it was not the beginning of a discussion.
Police said it was the start of an assault.
The second man, who was white, didn't want to answer the question.
Then the first man, who was black, struck him in the face.
According to a police report about Monday's incident two more African-American men joined in the beating.
It was caught on surveillance cameras on the MetroLink train and a passenger recorded it with a cell phone and posted the video online.
Police confirmed to CNN that the online images came from the attack.