I think I will speculate that it was something like this.
Adam was pulled out of his school to be homeschooled a while back, Maybe the same psychologist also was school psychologist at the High School. They are rarely hired to work out of just one school.
Perhaps she jad recommended some kind of treatment or hospitalization of Adam. Maybe Mom was upset or angry about that so she pulled him out of the school.
I read somewhere that the mother had said Adam was getting worse. Perhaps she was getting ready to do something drastic like getting him hospitalized and needed to get that school psychologist to help with getting that done.
Perhaps Adam found out, became enraged, went up to the school the psychologist was at and argued with her. The next morning, he got up, shot the mother that angered him, then went off to the school to make sure that psychologist and others paid.
just guessing, but, who knows. I still would like to know how Adam entered the school. I only hear he forced his way in. Did someone else go in and he piggybacked his way in? The cops said the glass on the door may have been busted by them trying to enter.
Or the school psych was one that the school system circulated through the schools, and was this killer’s school psych— and in that context, in CT she needed the corroboration medically to commit him involuntarily.
Site with listing of the “age of majority” in CT and exceptions to that under CT statutes. Interestingly KidCare mental health state program stops at age 19:
http://www.cga.ct.gov/2003/olrdata/kid/rpt/2003-R-0071.htm