It sounds lik you’re assuming th 15 yr.. old is mentally ill. If or not certain cultures are more violent than others. That’s a fact.
In another video, the mom said her son is mentally ill.
Yes, kids today are overmedicated and over-diagnosed. But, some really do have mental illness.
If this story is true, this is a troubled teenage boy.
No, I did not make that assumption, the mother said it, and said that the 15 year old would not take the medications that he needed to manage his illness.
This situation is common across the country. The medications needed to manage this sort of impulsive, out of control, irrational, delusional, and dysregulated behavior do not feel good and the mentally ill often rebel at taking them and then as their illness symptoms increase, this sort of damage is the result. They will not take the pills that straightjacket their brains, and real straightjackets are illegal.
So If you want you can be invested in this being a cultural or racial thing, it may be important to you to see it this way, however in reality this is a mental health de-institutionalization thing.