MELBOURNE – James Holmes, accused of opening fire in a crowded movie theater in Aurora, Colorado, last summer, had no criminal history, but was seeing a psychiatrist prior to the incident. Adam Lanza, suspected of murdering his mother and gunning down 20 children and six adult staff members at a Connecticut elementary school before taking his own life, had never been in legal trouble, but had been diagnosed with a “personality disorder,” as well as the developmental disorder Asperger syndrome.