Police search for answers in Newtown school shooting

10:00 P.M. UPDATE: Significant evidence has been collected at both the Sandy Hook Elementary School and Adam Lanza's Newtown house but what that evidence is and if it sheds light on a motive is not yet being revealed.

"If, if there is computer evidence and I strongly say "if" we do have a computer crimes team and our state forensic laboratory that are experts in retrieving any type of evidence and data," Lt. Vance said.

State police, working with the ATF and the FBI, are also focusing on the high-powered weaponry used to kill the 20 first graders and their 6 teachers.

"That weapon from the day, it was built to the day we seized it. We will look at every aspect of it from stem to stern, where it's been, who's had it and all the clips, the ammunition, everything to do with all the weapons," Lt. Vance said.

That weapon is the Bushmaster, a semi-automatic rifle. CT has one of the strictest assault weapons bans in the country but this gun, along with the three other weapons found with Lanza were purchased legally by his mother, Nancy Lanza.

Police are now looking into where mother and son may have trained to see if there are more clues there. They are also interviewing hundreds of witnesses, neighbors, friends and acquaintances, saying local, state and federal officials are working on this around the clock.

In fact, Lt. Vance appeared weary, there heavy sighs, this tragedy taking its toll here too. But we're told they won't stop until we know why.

"The answers are for the poor victims, the families, the people of Conn. that need to know and see a clear picture as to exactly what happened here," Lt. Vance said.

5:00 P.M. UPDATE: Police say hundreds of shots rang out Friday and now hundreds of officers are trying to answer why and how it happened.

"The answers are for the poor victims, the families, the people of CT that need to know and see a clear picture as to exactly what happened here," Lt. Paul Vance said.

Vance says they're busy questioning every single person who survived the tragedy. Both the school and the shooter's house are active crime scenes.

He says they're tracing the history of 20-year-old Adam Lanza, the guns he used, and if he had any training.

"We definitely are peeling that onion back layer by layer and we'll know all that information and believe me when I tell you there's a team working on just that," Lt. Vance said.

4:00 P.M. UPDATE: At a news conference Governor Dannel Malloy was asked how he had to inform the families on Friday that their loved ones didn't make it.

The Governor says he by-passed the state police department's normal investigative policies to bring the families some closure.

"Yeah I was uh...It was evident to me that there was a reluctance to tell parents and loved ones that the person that they were waiting for was not going to return. And that had gone on for a period of time well after there was any expectancy that families would be reunited. I made the decision that to have that go on any longer, was wrong. I did it," Gov. Malloy said.

Sandy Hook Elementary is closed indefinitely and state police say the building could remain a crime scene for months.

Investigators say they've seized significant evidence from the Lanza home and they're digging through Adam Lanza's medical records as well as his history at local gun ranges.

"There are many people, including first responders, including town residents, including people right in this audience, that have broken hearts over this. And we're going to do everything that it takes to ensure that we uncover every bit of evidence, that we examine every facet of it, that we conduct as many interviews with everyone that we need to do, to paint a clear picture as to exactly how and why this tragedy occurred."

Federal agents say Lanza fired guns at ranges over the past several years but there's no evidence he did so recently as practice for the rampage.

1:00 P.M. UPDATE: Monroe is working to open up a former school and welcome in students from Sandy Hook.

Lt. Brian McCauley of the Monroe Police Department said Monday, "we are working to try to bring back some normalcy. We are working to make it a safe and secure environment for the students who are coming to Chalk Hill."

According to officials, lots of police will be present on the first day to console and instill a feeling of confidence in parents and students.

Chalk Hill Elementary School was built in the 1960's.