18 December 2012 12:00 | By MSN UK News, updated by Shah Salimat
Sandy Hook shooting: the victims' stories

The gunman - Adam Lanza

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Adam Lanza was described by friends as highly intelligent although reports suggested he suffered from a psychological condition.

Aged 20, he once attended the school but was not believed to have a job.

Police believe he killed his mother at home before travelling to the school in her car armed with at last three guns.

His motive remains unclear.

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