This is straight up fake/misleading news from Gateway Pundit. She texted this in response to him getting caught browsing for ammo on his phone during class a week prior to the shooting. According to this Fox article:
In the week before the shooting, on Nov. 21, McDonald said a teacher at Oxford High School had noticed Ethan Crumbley searching for ammunition on his cell phone during class and reported the incident to administrators.
His mother then was contacted by phone and email, but the school never heard back from her, McDonald says. Instead, she added, Jennifer exchanged text messages with her son about the incident, one of which said "Lol I’m not mad at you, you have to learn not to get caught."
This is straight up fake/misleading news from Gateway Pundit. She texted this in response to him getting caught browsing for ammo on his phone during class a week prior to the shooting. According to this Fox article:
GP has gone to dogs for a while now, not surprised.