Car driven by Connecticut school shooter Lanza is towed from Sandy Hook Elementary School in Newtown,

Police have found no evidence that the troubled gunman who killed 20 children and six adults in a Connecticut elementary school was being treated with any drugs that might have tamed the mental illness that authorities believe drove his murderous rage, according to a report.

Investigators searching the home Adam Lanza shared with his mother, Nancy Lanza, seized cellphones, computers and computer games, but found nothing to indicate he was under medication, Hearst Connecticut Newspapers reported. Authorities armed with search warrants are still working to obtain medical records, according to the report. Lanza’s parents told friends and divorce mediators that the 20-year-old had Asperger’s syndrome, a form of high-functioning autism, but it was unclear if he had ever been formally diagnosed.

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