Jordan Luton was finishing his lunch in the cafeteria at Washington state's Marysville-Pilchuck High School on Friday when he heard it -- a loud bang.Then there was another. And another. And another. And another.What he saw was freshman Jaylen Fryberg go up to a table with students, "came up from behind ... and fired about six bullets into the backs of them," Some of the students began to run. Luton and others hit the ground, some hiding under tables.By the time it was over, two people -- the gunman and a female student -- were dead and four were wounded.