SPRINGFIELD, Mass. (WWLP) - Saturday marks 12 years since the mass shooting at Sandy Hook Elementary School in Newtown, Connecticut. Massachusetts State Police conducting sobriety checkpoint in Hampden County On December 14th, 2012, a gunman killed 20 children, ages six and seven, as well as six adults, before taking his own life. It remains one of the deadliest school shootings in American history. On Friday, teachers from the Rebecca Johnson School continued their annual tradition of walking from Springfield City Hall to the Memorial Bridge, where they held a ceremony remembering the victims.  “We feel like being teachers, we know that could have been our classroom. It could have been any classroom. That tragedy really hit home and we feel like that by honoring our past is a way to cherish the future and hope that we never let this happen again,” said Roni Gold, a teacher at Rebecca Johnson School.  Thursday night, the annual vigil for all victims of gun violence was held at a church in Washington D.C. Local News Headlines A look at the average Massachusetts snow and rain in December College-bound Springfield students march to celebrate academic success Second Chance saved over 55,000 pets in 2024 Springfield teachers honor Sandy Hook victims with remembrance ceremony on Memorial Bridge WWLP-22News, an NBC affiliate, began broadcasting in March 1953 to provide local news, network, syndicated, and local programming to western Massachusetts. Watch the 22News Digital Edition weekdays at 4 p.m. on WWLP.com.