Agreed that HD appears to display oppositional defiant behavior at times.
Developmentally, in and of itself, challenging authority figures is not unusual for a 14-year-old adolescent, although LE being called out to the home multiple times does indicate HD's behaviors sometimes escalate beyond the bounds of what would be considered normal teenage rebelliousness.
This is what leads me to believe that after his mom insisted he go to school despite his complaint of feeling sick, it's unlikely that HD complied with her mandate.
My concern is that HD may have regarded that as the proverbial last straw.
I think HD does have some issues.
I think his parents also have some issues, as evidenced by some of his YT videos.
I think the family unit collectively has some significant issues.
I just hope it's not too late for them all to work on those issues together.
I especially hope it's not too late for Harley.
JMO.