I worked in the Los Angeles Public School System for quite awhile, and i saw my share of kids with mental health issues and behavioral problems. But I only know of two elementary school students who I believe would be future psychopaths. One did end up in prison for a drive by gang shooting, but I don't know what happened to the scarier one.
We had this one kid who was actually doing forced sexual things to other kids when he was 6. It was reported to CPS and we thought, assumed, he was an abuse victim. But that was never verified and he insisted he was not. But he had very strong and impulsive sexual desires and he was also violent. He got kicked out and was sent to a school for kids with emotional problems, but his younger sibs stayed at our school, so he would come and pick them up and he would come to school events. And we would have at least two adults assigned to watch him like a hawk every time he came on campus.
When he was in kindergarten he 'accidentally' killed the classroom mascot,a bunny. He was the last one to leave the room at lunch because he forgot something and ran back inside, while the teachers aide waited for him outside, and when they all came in from lunch, the bunny was found dead with a broken neck.
He 'accidentally' kicked other kids in the head while on the monkey bars, and stepped on kids fingers really hard. He hid in the girls bathroom and peeked under the stalls. :what:
He would play with himself in class, in full view of everyone. He would have violent tantrums where he would destroy everything he could, before anyone could even stop him. He was big and strong, muscular even, at age 6. And he would bite and spit and kick and pike you in the eyes when you tried to hold on to him.
Other times he would run off and hide or leave the campus all together. And his mom would be really mad, that we let him get away. We had safeguards and security in place, but if a kid is sneaky and cunning, they can escape.