If they are capable of committing a crime such as murder, then they are dangerous. They should not get a free pass for ending a person's life because of their age. Some juveniles view the juvenile justice system as that "free pass" and that adds to the danger of letting them off easy.
Juveniles should be tried as adults in murder cases. I think that it would be wrong to give a teenager a reduced sentence just because of their age. If they are willing and able to commit murder then they should be held to a sentence as anyone else in their position.
Murder is a heinous crime, and whoever commits it, no matter what their age, deserves to be punished to the full extent of the law. If a minor is adult enough to take another person's life, they should have the courage to face a judge and jury as an adult also.
Murder is a terrible thing, and even kindergarten kids know murder is wrong. When it comes to another human being's life, kids should be tried as adults because of the seriousness of the crime. Kids shouldn't be thrown in adult jails if they are too young, but a long time in juvenile detention will help acclimate them to a possible lifetime behind bars.
I don't think that juveniles should be allowed to hide behind their age when it comes to sentencing for certain crimes. All violent crimes should have the perp treated as an adult. Some kids hide behind their age to get away with big crimes like this and it is wrong.
There's nothing adult about making poor choices. We can not equate choosing bad decision as an 'adult' thing. It will never be an adult thing, if anything, it's a 'sick' thing. Juveniles need to be rehabilitated, and they need to serve time in a juvenile institution and not in an adult prison. You don't mix them. That's a big mistake!
How people are tried depends on the person and on the crime, but people are too quick to try juveniles as adults. In many cases, a 15 or 16 year old is as capable as an adult, true, but many others are not due to their age - as are many younger children.