MANCHESTER - Days after Omar Thornton killed eight people at a Manchester beer distributor, the 911 tape of him calling police before he committed suicide is being analyzed by experts.

Dr. David Bernstein, a forensic psychologist, says that Thornton may have felt he needed to feel justified, and by calling the police, in his own mind, he was able to justify the shooting.

He also says that Thornton was calm because he had most likely made the decision to end his own life and thus felt no consequences from his actions.

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