It really depends on the crime and how much did they understand at the time. But I will say, i think a child that murders another child on purpose around the age of 13 cannot claim to not understand that murder is wrong, and so be tried as a an adult, unless there are other circumstances that lead to the murder. Peer pressure from older kids that made him or her feel in fear for there own life, like in a gang situation. Or if they felt some harm may come to a family member. Can’t trust them to think clearly in a situation that most adults would have a hard time with themselves. If the murder was also caused in a rage that blinded them from the outcome, than that would also be temporary insanity and they also should not be tried as an adult. In the end. I’m glad the decision comes down to what a judge or a DA decides.