Sandy Hook Promise (SHP) is a national nonprofit organization with a mission to end school shootings and create a culture change that prevents violence and other harmful acts that hurt children. Through its life-saving, evidence-informed "Know the Signs" prevention programs, SHP educates and empowers youth and adults to recognize, intervene, and get help for individuals who may be socially isolated and/or at risk of hurting themselves or others. Through nonpartisan policy and partnerships, SHP advances gun safety, youth mental health, and violence prevention education at the state and federal levels that protect all children from gun violence in their schools, homes, and communities. SHP is led by several family members whose loved ones were killed in the tragic mass shooting at Sandy Hook Elementary School on December 14, 2012. Make the Promise at www.sandyhookpromise.org.