Have we become used to or immune to mass shootings?

[DanaC]

The Austin American-Statesman newspaper reports that he was homeschooled by his mother during his high school years. His parent's home is now being searched by authorities, according to the newspaper.

"I officially graduated Mark from High School," his mother wrote on Facebook in a 2013 post showing her son.

"He's thinking of taking some time to figure out what he wants to do...maybe a [religious] mission trip," his mother wrote.

Followed by this:

US media have uncovered a 2012 blog which was written under the suspect's name and appeared to be for a university course that he attended.
In the blog called "Defining my Stance", he purportedly describes beliefs that "gay marriage should be illegal", opposition to abortion and why the sex offender registry should be eliminated.

I think we can start to connect a few dots here.

The other reason for homeschooling is to be able to prevent one's child from being exposed to competing ideologies or information that runs counter to an extreme religious position.