Editor's note: Mel Robbins is a CNN commentator and legal analyst. Robbins is the Founder of Inspire52.com, a positive news website and author of "Stop Saying You're Fine," about managing change. She speaks on leadership around the world and in 2014 was named Outstanding News Talk Radio Host by the Gracie Awards. Follow her on Twitter @melrobbins. The opinions expressed in this commentary are solely those of Mel Robbins.
(CNN) -- Here we are -- yet again. Barely a year passed since the massacre in Newtown, Connecticut, and a young man with a history of chronic anger and mental illness just killed six people and injured 13 others.