New video released by Connecticut State Police shows the inside of Sandy Hook gunman Adam Lanza's house following the shooting.
The police footage shows numerous rounds of ammunition, gun magazines gun cases, and a scratched hard drive
A report released on the gunman of the Sandy Hook massacre reveals that Adam Lanza "was undoubtedly afflicted with mental health problems; yet despite a fascination with mass shootings and firearms, he displayed no aggressive or threatening tendencies".
Lanza became obsessed with the 1999 bloodbath at Columbine High in Colorado and other mass killings, the report said. He also kept a spreadsheet ranking mass murders.
The report also said that in 2005, he was diagnosed with Asperger's disorder - an autism-like condition that is not associated with violence - and that he lacked empathy for others and behaved strangely.
Connecticut state police released a trove of documents over the Sandy Hook massacre including footage of the school facade, including close-up images of bullet-shattered windows, and a video tour through the cheerfully decorated home the shooter, Adam Lanza, shared with his mother, Nancy Lanza.
Connecticut state police released thousands of pages of documents on Friday tied to their investigation of the shooting massacre at Sandy Hook Elementary School last year that killed 20 children and six adults.
Commissioner Reuben Bradford said in a letter introducing the documents:
I hope that the release of this report, though painful, will allow those who have been affected by it to continue in their personal process of healing, and will provide helpful information that can be put to use to prevent such tragedies in the future.
Police in Connecticut have released pictures showing the bloody aftermath of the aftermath of the Sandy Hook Elementary school shooting.
The shooting was one of the deadliest incidents of gun violence in US history. The gunman Adam Lanza who also shot and killed his mother before the rampage, killed 20 children and six adults at the school before turning the gun on himself when police showed up.
The release comes about a month after the state Division of Criminal Justice released a report on Newtown that concluding that 20-year-old Lanza acted alone, and that his motive may never be known.
The acting superintendent of Newton public schools sent an email to parents yesterday to inform them of the planned release by police of the thousands of documents relating to the investigation into the Sandy Hook Elementary shooting. John Reed said:
Like you, I have not seen the materials, but I suspect for some persons, the contents will be an emotional trigger.
Police in Connecticut have released thousands of pages of documents from their investigation into the Sandy Hook Elementary School massacre that killed 20 children and six adults.
The documents include videos, pictures, text and 911 emergency calls received by state police on the day of the shooting, December 12, 2012.
President Obama has marked the anniversary of the massacre at Sandy Hook elementary school with a moment of silence at the White House.
Before pausing to remember the Connecticut school tragedy a year ago, the president and first lady Michelle Obama lit 26 votive candles set up on a table in the Map Room - one candle for each of the 20 children and six staff members who were killed.
Church bells in Newtown, Connecticut, rang 26 times as the names of each of the victims were read at the town's St Rose of Lima church, one of several houses of worship that held private services for a community still grieving the deaths.
President Barack Obama has spoken out on gun control on the anniversary of the Sandy Hook massacre, when 27 people were killed by high school gunman Adam Lanza in Connecticut.
"We haven't yet done enough to make our communities and our country safer," Obama said. "We have to do more to keep dangerous people from getting their hands on a gun so easily. We have to do more to heal troubled minds."
The president, whose address was pre-recorded, did not refer to the shooting at a Colorado high school which left one female student in critical condition.
Obama is due to observe a moment of silence at the White House today in memory of those who died at Sandy Hook.
Earlier this year the US Senate blocked new laws that would have made it harder for Americans to buy certain types of weapons.