Little about Mohammad Youssuf Abdulazeez — identified by the FBI as the gunman who killed four Marines at two facilities in Tennessee on Thursday — indicates a motive. Here is what we know about him ...

This assignment is due on April 12. Grading for this assignment is on a 5-point scale; late assignments will be docked 1 point for each day they are late (assignments submitted 4 days late or later ...