First of all, why the "young mother" in the headline? What does that have to do with the story? (Rhetorical question)
Secondly, it doesn't appear that the school suspended her because she was pointing a gun at a camera, they suspended her because she is in a photo with a (legally owned) gun. I don't think that's going to hold up if she demands a hearing.
Thug life? Looks like that's exactly what the school was assuming. Fairly racist.