In semi-related news, there was apparently a foiled school shooting plot in Tulsa Friday.

11 a.m.: The Hartford Courant's Dave Altimari reports how Lanza gained access to the school:

Sources saying that Lanza got into the school by blasting through the front doors firing as many as half dozen shots to gain entry. #Newtown — Dave Altimari (@davealtimari) December 15, 2012

10:35 a.m.: Despite our initial expectations, state police official Lt. Paul Vance speaking moments ago did not release the list of victims. Officials did say Lanza forced his way into the school but wouldn't elaborate how. Reporters tried to ask if he went in through a window but Vance wouldn't confirm. Vance said they found evidence at the scene at the house that gave them a good indication of the "how and why" the crime happened. Vance said he would be back soon with more information. The state police press statement can be found here.

NBC News is reporting that Lanza brought four handguns into the school along with the rifle, and also that Lanza went to a sporting goods store and was denied the right to buy another rifle earlier this week. They're also saying there was an "altercation" between Lanza and school officials on December 13, but it's unclear why.

10:15 a.m.: Press conference is live now:

9:30 a.m.: It appears there's been a slight delay with the press conference. It's currently 9:20 a.m. and it was supposed to start at 8 a.m. Fox CT's Ryan Bernat reports the start of the conference has been pushed back. We'll keep posting the embedded player with the latest update in the live blog.

The Associated Press reports there was a fourth weapon found outside Sandy Hook Elementary. We previously knew about a Glock 9mm pistol, a Sig-Sauer pistol, and a civilian version of the military's M4 carbine. It's unclear right now what kind of gun the fourth

8:00 a.m.: Police officials are about to brief the complete list of victims any minute now. Watch live here courtesy of NBC News.

7:27 a.m.: We're parsing through overnight reports while we wait for the the 8 a.m. press conference with policie officials where we're expected to confirm the names ages of the victims.

This is Saturday morning's front page of the Hartford Courant:

Via Sports Illustrated's Richard Deitch, The Boston Globe's Dan Wasserman's editorial cartoon Saturday morning is pretty powerful:

7:05 a.m.: The President offered his thoughts and prayers to the families in his weekly address Saturday morning, saying the U.S. has, "endured far too many of these tragedies in the last few years," and advocating the country, "come together and take meaningful action to prevent more tragedies like this. Regardless of the politics."

The complete transcript of his address:

On Friday, we learned that more than two dozen people were killed when a gunman opened fire in an elementary school in Newtown, Connecticut. Most of those who died were just young children with their whole lives ahead of them. And every parent in America has a heart heavy with hurt. Among the fallen were also teachers – men and women who devoted their lives to helping our children fulfill their dreams. So our hearts are broken today. We grieve for the families of those we lost. And we keep in our prayers the parents of those who survived. Because as blessed as they are to have their children home, they know that their child’s innocence has been torn away far too early. As a nation, we have endured far too many of these tragedies in the last few years. An elementary school in Newtown. A shopping mall in Oregon. A house of worship in Wisconsin. A movie theater in Colorado. Countless street corners in places like Chicago and Philadelphia. Any of these neighborhoods could be our own. So we have to come together and take meaningful action to prevent more tragedies like this. Regardless of the politics. This weekend, Michelle and I are doing what I know every parent is doing – holding our children as close as we can and reminding them how much we love them. There are families in Connecticut who can’t do that today. And they need all of us now. Because while nothing can take the place of a lost child or loved one, all of us can extend a hand to those in need – to remind them that we are there for them; that we are praying for them; and that the love they felt for those they lost endures not just in their own memories, but also in their community, and their country.

Friday, 9:34 p.m.: We're breaking for the night. We'll be back at 8 a.m. for the press conference that will identify all positively identified victims and potentially confirm the name of the shooter, as well as provide other emerging news.