& paste from his tweet. But in the few images I saw, and what he reiterated in his video discussion of the documents they received
https://x.com/MattWalshShow/status/1800975003263086808 , he mentions her railing against her mother for pushing Christian friends on her, and complaining about religions that that was why she didn't practice religion anymore. Her various views were in obvious conflict with traditional Christian beliefs, and of course she went to a Christian school to kill people. Perhaps that is all a coincidence, but perhaps not.
In any event, as Matt Walsh discusses in the video linked to above, the FBI apparently had no valid reason for hiding the documents from the public, and they still haven't released all of them. They claimed it was because of their investigation, and to prevent false narratives. Both claims are absurd. The shooter is dead and they don't have any other suspects & don't claim to be looking for any others. There was a narrative that maybe she chose that school because someone there had abused her, but that doesn't seem to be the case based upon what we can see of her writings... that is apparently a false narrative that the FBI could have dispelled by releasing her writings, but that false narrative didn't seem to bother them at all.
I recommend watching his video on Twitter or one of the other outlets, as he notes that Youtube censors their videos pretty strongly.