At 10 a.m. on Dec. 3, 2013, students' cellphones at South Carolina State University buzzed or beeped with this text message:
"Initiation of Lockdown: The following alert is an active shooter mock drill being conducted by SC State Police. This is only a drill."
There was no threat to the campus that day, but Mernard Clarkson, the interim chief of police, wanted to test the university's mass notification system and response to an active shooter situation.
"Anytime you can train on something and have pre-information on what to do, the better the outcome will be," Clarkson said. "Folks knowing what to do will reduce the likelihood of more people being injured in this type of incident."
Clarkson had no idea that less than two months after