A wave of active shooter hoaxes at universities brings panic and turmoil to the start of the school year

A terrifying text message sent students running for cover, barricading themselves in bathrooms and knocking over chairs in the frantic rush to hide from the active shooter reported on their university campuses.

​ A terrifying text message sent students running for cover, barricading themselves in bathrooms and knocking over chairs in the frantic rush to hide from the active shooter reported on their university campuses. Read More Breaking News, Latest News and Videos | CNN