Parents of children killed at Sandy Hook Elementary have submitted an amicus brief while the Supreme Court weighs whether state bans on assault weapons violate the Constitution. The 2012 massacre took twenty first-grade students plus six educators; the attacker carried an AR-15 fitted with a high-capacity magazine and discharged 154 shots across five minutes.

Sandy Hook Promise, formed by kin of six-year-old Dylan Hockley and psychologist Mary Sherlach, affirms the right to keep arms yet calls that rifle unusually lethal. CEO Nicole Hockley, Dylan’s mother, said Connecticut citizens used their legislature after the attack to shield remaining children. Families tied to the Parkland and Annunciation Catholic School attacks have filed comparable briefs.