Survivors and first responders describe the 2012 movie theatre shooting in Aurora, Colorado, while a grieving family challenges the media.

The 2015 shooting in San Bernardino, California launches a massive response from law enforcement, while a shocked community reacts to homegrown terrorism.

The city of Charleston, South Carolina is torn apart by a shooting at an historic church. In the aftermath, the community struggle with the idea of forgiveness.

Stories of loss and heroism from the 2013 shooting at the Washington Navy Yard are shared. The shooter's sister details her brother's descent into violence.

The community in Orlando, Florida, is left devastated and traumatised by a shooting at Pulse Nightclub that leaves 49 people dead.

A shooter's vicious path through Santa Monica, California ends in a deadly confrontation on a college campus. Examining the shooter's mental health.