Trayvon Martin is dead because he tried to blend a man’s head with the pavement, and that man shot him. Moral of the story: don’t pound people into the sidewalk, and they won’t kill you.
Untold thousands of words have been written about this. What is the shortest sentence to explain what happened? Maybe: “A black man was shot because he attacked a Hispanic man.” Or: “A black man attacked an Hispanic man and was shot.” The last one is ten words.