WASHINGTON -- President Obama pressed Congress on Thursday not to forget the heartbreak of the Newtown elementary school massacre and "get squishy" on tightened gun laws, though some lawmakers in his own Democratic Party remain a tough sell on an approaching Senate vote to expand purchasers' background checks.
"Shame on us if we've forgotten," Obama said at the White House, standing amid 21 mothers who have lost children to shootings. "I haven't forgotten those kids."
More than three months after 20 first-graders and six staffers were killed in Newtown, Conn., Obama urged the nation to pressure lawmakers to back what he called the best chance in over a decade to tame firearms violence.
At the same time, gun control groups were staging a "Day to Demand Action" with more than 100 rallies and other events planned from Connecticut to California. This was on top of a $12 million TV ad campaign financed by New York City Mayor Michael Bloomberg that has been pressuring senators in 13 states to tighten background-check rules.
Meanwhile, when Adam Lanza walked out of his house for the last time, he left behind firearms and knives and more than 1,600 rounds of ammunition -- taking only four guns. They would suffice.
He loaded the weapons into his car, drove to Sandy Hook Elementary School, blasted his way into the building and within five minutes fired off 154 shots with a Bushmaster .223-caliber rifle. Having slaughtered 20 first-graders and six educators, he killed himself with a shot from a Glock handgun. He still had more than 100 rifle bullets at hand.
Warrants released Thursday provide the most insight to date into the world of the 20-year-old gunman, a recluse who played violent video games in a house packed with weaponry that was all too real. The inventory of items found in the spacious, colonial-style home included books on autism, a vast array of weapon paraphernalia and images of what appears to be a dead person covered with plastic and blood.
The weapons used in the shooting had all apparently been purchased by Lanza's mother, Nancy, with whom he lived, said prosecutor Stephen J. Sedensky III, in a statement accompanying the warrants.
She was found dead in her bed; Adam Lanza had shot her the morning of the massacre, Dec. 14. Authorities also found a gun safe in his bedroom and a holiday card from Nancy Lanza containing a check made out to her son for the purchase of yet another firearm.