Reports of an active shooter at CWU turn out to be false alarm

UPDATE: Some CWU staff have canceled their classes Thursday following last night's events. The university as a whole has decided to keep operations running on a normal schedule, but said "We understand and support the decisions of our faculty. We hope that most will keep their schedule to help restore a sense of normality."

Why female shooters are rare

As the investigation continues into why a female shooter opened fire at YouTube headquarters, data show that it's rare for women to carry out such shootings -- making Tuesday's incident unusual.