"Many people have asked why the shooter did what he did on December 14, 2012," said the 48-page report, which was published on the state's Division of Criminal Justice website. "Or in the vernacular of the criminal justice system, 'Did he have a motive to do what he did?' This investigation, with the substantial information available, does not establish a conclusive motive."
The report also says that there was "no clear indication" why Lanza chose Sandy Hook for the shooting, other than that it was close to his home. The report says it is "unknown" what contribution his mental health issues made to his attack, though they interfered with his ability "to live a normal life," and that Lanza had a strained relationship with his mother Nancy, telling a witness he would not feel bad if something happened to her. Lanza shot and killed Nancy before he drove to the school.
Lanza is described as obsessed with mass shootings. "He had a familiarity with and access to firearms and ammunition and an obsession with mass murders," said the report, "in particular the April 1999 shootings at Columbine High School in Colorado. Investigators however, have not discovered any evidence that the shooter voiced or gave any indication to others that he intended to commit such a crime himself."
Investigators said Lanza had posted on an "internet blog" that "focused on mass shootings and in particular the Columbine shootings."
Police, according to the report, arrived at the school "within minutes of the first shots being fired. They went into the school to save those inside with the knowledge that someone might be waiting to take their lives."
For the full story: http://investigations.nbcnews.com/_news/2013/11/25/21580571-newtown-report-shooter-adam-lanza-had-no-clear-motive-was-obsessed-with-columbine
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