Yep. 15 years old, public school, male child.
Fits the profile perfectly.
Most likely well-trained by first person mass murder video games
There is no “profile” of these type of shooters. That happens to be one of the biggest myths out there.
The Secret Service did an in depth study of school shooters that spanned a number of years, they found that mass shooters have a wide range of backgrounds.
The only thing that most had in common was that almost all planned and talked about what they were going to do before they did it.