Newtown shooter documents released today

Shooter killed victims within 5 minutes, had large weapons cahce

In this Dec. 14, 2012 file photo provided by the Newtown Bee, a police officer leads two women and a child from Sandy Hook Elementary School in Newtown, Conn., shortly after Adam Lanza opened fire, killing 26 people, including 20 children.

NEW HAVEN, Conn.  — The gunman who attacked a Newtown, Connecticut, elementary school in December had several additional firearms not used in the attack and hundreds of rounds of ammunition, according to court papers released today.

Connecticut officials released dozens of pages of court documents on their investigation into Adam Lanza, a 20-year old man who killed his mother, 20 first grade school children and six staff members before turning a gun on himself in the second deadliest school shooting on record in the United States.

A 90-day sealing order expired on the search warrants that were served on Lanza's home and property. The search also turned up certificates from the National Rifle Association gun-lobby group in the names of both Adam Lanza and his mother, Nancy Lanza.

The Connecticut prosecutor leading the investigation into the Newtown school shooting says the gunman killed the 26 victims and took his own life within five minutes of shooting his way into the building.

Search warrants say the 20-year-old gunman, Adam Lanza, was found dead wearing a bulletproof vest and military-style clothing.

State's Attorney Stephen J. Sedensky III says Lanza killed all the victims inside Sandy Hook Elementary School with a Bushmaster .223-caliber rifle before taking his own life with a Glock 10 mm handgun. He says Lanza also had another loaded handgun with him inside the school as well as three, 30-round magazines for the Bushmaster.

A loaded 12-gauge shotgun was also found in the passenger compartment of the car Lanza drove to the school containing 70 shotgun rounds.

The assault last Dec. 14 at the Sandy Hook Elementary School prompted President Barack Obama to call it the worst day of his presidency and reignited a debate on gun violence in the United States. In response to the attack, the NRA called for armed guards to patrol every public school in the country.

The documents were released on the same day that a group of Newtown residents plan a protest at the National Shooting Sports Foundation, less than 3 miles (5 km) from the school over the NRA's opposition to new gun control laws. Newtown residents were enraged after receiving a slew of robo-calls on behalf of the NRA bashing anti-gun laws.