Actually it sounds like there isn't anywhere safe for her to send him. He's a danger to himself, his brothers, and himself. Not to mention the others at school. She had the sense to move him from 'gifted' classes to self-contained behavior disordered classes, though little teaching goes on in those classes, thus she referred to babysitting.
Institutions that existed prior to the 1960's certainly left much to be desired, rather than improving, they were closed. When that meant mentally ill children, particularly violent children, the problem was dumped on the home. At 18 or even earlier, many stopped taking their meds, eventually leaving home and many our now the homeless.
Sending a 13 year old, mentally ill boy to a juvenile detention complex doesn't seem the right choice for most. If though he managed to carry through with his threats in 2 or 3 years, he'll be treated as an 'adult.' That is certainly wrong.
If the problem had been dumped on the home we might actually have a solution by now, instead it was dumped on the schools when the feds declared that everyone had a right to get the exact same education. This dumped all those kids into the public school system, and put teachers that were trained to deal with normal children in charge of kids who are not normal. They cannot do this, and it is expensive to hire qualified teachers that are also qualified in psychiatric care, so schools resort to medicating children that cause problems.
And, no, i do not believe that medication causes violence. I do, however, believe that medication is not always the best solution, which is why these children should not be shoved into schools that are not equipped to handle them.
The best thing to do is stop treating everyone the same and give parents options for treatment that work for their children. We also have to be harsh and recognize that it is not the responsibility of society to make sure everyone is healthy and sane. While laudable, it is impossible to pretend people like this do not exist and assume that more federal government oversight is the answer. Everyone needs to be treated on an individual basis, and anyone that cares about mentally ill should care about making sure the government does not set out a one size fits all policy that shoves everyone into the same box based on a label.
That has some merit for some issues. Not like that of this kid from OP or the one that shot up the school on Friday. She shooter's mom pulled him out of school and homeschooled-in high school. The kid was from accounts, easily found by honor roll publications, yet some 'school plan,' the mother disagreed with enough to stay home with a 17 year old. That sure sounds like there was a severe behavior issue, leading to IEP, something the school was going to insist upon probably via court, caused her to pull him out. He graduated, but I'll be that was via the homeschooling and individual testing. So far, we know nothing of his being on meds or any psychiatric care he may or may not have received.
The boy in the article? On meds, with psychiatrists, been hospitalized it sounds repeatedly, police have been involved, has own social worker. School recommended pulling him from gifted program to self-contained BD, mother agreed. He's getting treatment and it's been ongoing, he's still pulling knives, punching, threatening murder and suicide, when he's upset. Can't guess what will upset him. He's brilliant, mostly under control, but when not under control? He could kill.