I cannot forget the horrific morning in April 2007 when 32 people were shot dead on VA Tech's campus. Kristina Anderson was shot multiple times that day but survived to advocate for campus and community safety.
The result - a smartphone app LiveSafe, that crowdsources alerts and reports unusual activity. The app allows users to post news, videos or photos of visible threats and works in conduction with campus safety measures and personnel.
h/t: Business Insider