Adam Lanza wanted to outdo the Norwegian mass murderer who killed 77 people in July 2011 so he picked Sandy Hook Elementary School because it was the "easiest target," CBS News reported Monday night, citing law enforcement sources.
Two officials briefed on the investigation said Lanza was likely acting out a video game fantasy and saw himself as a competitor to Andres Breivik, the right-wing fanatic who killed eight people in an Oslo bombing before slaughtering 69 young people on an island camp.
In December, the 20-year-old Lanza killed his sleeping mother before murdering 20 first-graders and six educators at the Newtown, Conn., school. He then committed suicide after firing at police.
Lanza targeted the school because it offered the "largest cluster of people," the sources said.
Lanza spent hours alone in a basement gaming room and also went to a shooting range with his mother. Police said he used three weapons in the Sandy Hook massacre, including a semiautomatic assault rifle, and shot his mother with fourth weapon.
Police have not officially released a motive for Lanza.
Responding to the report, the Connecticut State Police said that the investigation continues and that any statements about Lanza's intentions were just speculation.