on the others. bill: this is the 8th deadliest mass killing in recent u.s. history. we remember the shooting at virginia tech in blacksburg, virginia. april 1999, columbine, high school, littleton *, colorado. hopped fire on their fellow students and teachers. death toll that day, 13. also 13 killed in fort hood, texas when former army psychiatrist nadal hassan opened fire. he was sentenced to death for that crime only weeks ago. 12 is the count for the shooting at the navy yard. that does not include the gunman aaron alexis. 9 people were injured including