http://www.bbc.co.uk/news/world-us-canada-44187718 [bbc.co.uk]
The LA Times says it has spoken to the mother of another victim, 16-year-old Shana Fisher, who she said had "had four months of problems from this boy" - referring to the gunman. "He kept making advances on her and she repeatedly told him no," the mother Sadie Rodriguez said, adding that her daughter finally stood up to him and embarrassed him in class a week before the shooting.
So - "You better gimme some pussy, bitch, or I kill you!"