-- Lanza shot his way into the school; he wasn't buzzed in through the security system recently implemented by Principal Dawn Hochsprung. "He penetrated the building by literally shooting an entrance into the building," Connecticut Gov. Dannel Malloy said. "That's what an assault weapon can do for you."

-- The governor said Sunday that he broke the news to families in Newtown -- some of whom had waiting around a firehouse for hours, "clinging to hope" -- that their loved ones were not among the dead. "You can never be prepared for that," Malloy told CNN.

The gun control debate

-- Saying "we can't accept events like this as routine," Obama said Sunday night that he'll use "whatever power" he has to prevent "more tragedies like" what happened in Newtown. "Surely we can do better than this," the president said.

-- Sen. Dianne Feinstein, D-California, vowed on NBC's "Meet the Press" to introduce a bill on the first day that the new Congress convenes to ban assault weapons.

-- In his sermon at Washington National Cathedral, the Rev. Gary Hall offers a similar sentiment and urges action by religious leaders nationwide. "The entire American faith community can no longer tolerate this persisting and escalating gun violence against our people," Hall said. "Enough is enough."

-- And in Newtown, a grassroots citizen's group calling itself Newtown United holds its first meeting. The group's aim is to compel national political leaders -- whom its members accuse of doing little or nothing about things like gun control and mental illness after other mass shootings -- to make changes after Friday's massacre.