A report into the shootings at Sandy Hook Elementary School has concluded gunman Adam Lanza was "undoubtedly afflicted with mental health problems" and had a "fascination with mass shootings".
The report, prepared by the State Attorney, says: "Those who knew the shooter describe him in contradictory ways. He was undoubtedly afflicted with mental health problems; yet despite a fascination with mass shootings and firearms, he displayed no aggressive or threatening tendencies.
"In some contexts he was viewed as having above-average intelligence; in others below-average.
"Some recalled that the shooter had been bullied; but others – including many teachers – saw nothing of the sort. With some people he could talk with them and be humorous; but many others saw the shooter as unemotional, distant, and remote."