This is stunningly simple. At 18 years of age Cameron Herrin was legally an adult when he committed his crime. He was, accordingly, tried and sentenced as the adult he is. For that the only rational response should be "duh."

While there are provisions in law to treat children who commit crimes as adults (under specified circumstances) there are no provisions to treat an adult as a child. Which makes sense.

Had Herrin been only 17 when he committed this crime, that left two people dead, a strong case could have been made to try him as an adult. I would have supported his being tried as an adult.

And since you are hung up on the word "intent" let's talk about it. Herrin intentionally and with premeditation raced his car down a busy street that included many pedestrians. Herrin intentionally accelerated his car to over 100 miles per hour while doing so. Herrin intentionally operated his car at over 2 1/2 times the legal speed limit of 40 mph. Herrin intentionally took a risk that could foreseeably produce the kind of deadly tragedy that happened. None of that was an accident, it was very much on purpose. Herrin intentionally didn't care about the danger to people like Jessica and Lilia Raubenolt associated with his very intentional decisions.

As an adult Herrin committed an adult crime and got an adult sentence. I'm satisfied to see justice done for the real victims here.