A new report is shedding light on the events leading up to the shooting at Sandy Hook Elementary School almost two years ago.

The report by the Office of the Child Advocate and the state's Child Fatality Review Panel found that Adam Lanza had been in special education early on and showed an early preoccupation with violence that had not been addressed.

The report says Lanza had anxiety, autism and obsessive compulsive disorder, and that he and his parents stopped seeking treatment after 2008. It states that the Yale Child Study Center said his home schooling could be detrimental, saying, "rather than addressing his underlying needs, it would lead to a deteriorating life of dysfunction and isolation."

The report states that the panel found weaknesses and lapses in the health care and education system that played into Lanza's mental deterioration. However, they did not lead to an arc that inevitably caused him to commit the mass murder, according to the findings.

The report also makes suggestions for improved screenings and evaluations along with better resources for families dealing with mental illness.

Parents of the victims were able to see the report, which details 37 findings, before it was released to the public.