The investigation into the massacre revealed the gunman's "scorn for humanity."
The U.S. outranked China, Japan, Germany and the U.K.—combined—in firearm assaults.
See if you can catch the message the first time you watch the nonprofit's new video.
Sandy Hook families argue the rifle used in the 2012 school massacre should not have been entrusted to civilians.
Radio host Alex Jones repeatedly has called the 2012 Connecticut massacre a "hoax" involving child actors.
The families argue that the sale of the military-style rifle used in the 2012 massacre violated Connecticut's law.
Certain features in the "typical mass shooter" have been identified but more investigation is needed.
A lawyer for the gun maker argued Monday that it's not the role of a court or jury to decide who can own AR-15 rifles.
Activists called for expanded background checks for firearms purchasers and for a ban on sales to people on federal watch lists.
Each family is expected to receive about $94,000 to settle two lawsuits.
Two years after the massacre, town officials voted to tear down Adam Lanza's house while a new school is in the works.
Dr. Peter Langman's new book, released Friday, focuses on understanding for the sake of prevention.
Parents of 11 victims file papers to create estates for their children, a necessary step before filing a wrongful-death suit.
A report released Friday presented a profile of the gunman and revealed the missed opportunities before Lanza embarked on his shooting spree.