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- The mystery of what could have led Adam Lanza to open fire on Sandy Hook Elementary in Newtown, Connecticut, where he killed 20 children and seven adults, including himself, starts to unfold. Photo: AP
- Official sources in charge of the case told CBS that the 20 year old could have been influenced to commit the atrocities by some of the violent video games he spent long hour playing but also by a desire to outdo the infamous Norwegian serial killer: Anders Breivik. Photo: Getty Images
- Police sources say that Lanza saw himself in competition with Breivik, who killed 77 individuals in July 2011. Photo: Getty Images
- Breivik killed 8 by detonating a bomb in the center of Oslo. He then traveled to a nearby island where he opened fire and killed 69 more, many of those were adolescents who were at summer camp. Photo: Getty Images
- Breivik gave himself up to police and said he committed the crimes to combat socialism and the immigration of Muslims in Norway. He was sentenced to 21 years in prison, but the sentence can be extended every five years. Photo: Getty Images
- According to excerpts of the Newtown investigation, it looks as though Lanza followed Breivik's lead in targetting a Sandy Hook, as it was an easy target with a mass of individuals. Photo: AP
- Evidence recovered reveals that Lanza's mental state was such that he believed himsefl to be in a video game in which he had to complete an objective. Photo: AP
- For Lanza, killing 20 children and six adults, apparently symbolized reaching a certain score. Photo: Getty Images
- Wayne Carver II, a forensic expert from Connecticut, said he had never seen anything similar to the case, as each victim recieved between 2 and 10 shots each. Photo: AP
- Everything seems to indicate that Lanza finished his killing before he had planned to. Unlike with Breivik, who gave himself up, the 20 year old killed himself when police arrived at the school, but not before shooting at the officers in the parking lot. Photo: AP
- The authorities have not released an official motive for why Lanza committed the murders, but sources told CBS that they've found evidence that Lanza was obsessed with Breivik. Photo: Getty Images
- Investigators have discoverde what they says is a "treasure" of video games in the basement of Lanza's home. They insists that he spent hours upon hours alone in his room, with the windows covered, perfecting his virtual shooting skills. Photo: Getty Images
- Marsha Moskowitz, a school bus driver, remembers Adam as "very timid and quiet, always silent. If I told him 'hello,' he'd say 'hello' and that was it." When he was in high school, Lanza would dress with khaki shorts and button-up shirts. Photo: Getty Images
- For Lanza it was common to go to the shooting range, as his mother would go with him to practice shooting with real guns. Photo: Getty Images
- Three firearms, all registered to Nancy Lanza, were used during the Sandy Hook massacre. Adam Lanza used another one to kill his mother at home before going on his shooting rampage. Photo: Getty Images
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The mystery of what could have led Adam Lanza to open fire on Sandy Hook Elementary in Newtown, Connecticut, where he killed 20 children and seven adults, including himself, starts to unfold.
Photo: AP

