Following an October shooting, the University of Arizona (UA) has updated their safety protocols based on student, faculty and staff feedback.

Gun violence in America continues to reach staggering heights, with mass shootings taking place around the country. Security leaders can better understand public perception of gun violence by examining new research and planning their next steps.

Eleven people were shot Friday morning, including the suspected shooter, in front of the Empire State Building in New York. 

At least one person is dead and three others wounded after a gunman opened fire at a Texas courthouse Wednesday.