I doubt SCL knows his legal situation. Harboring a criminal is a crime and they would not want to go there; especially for someone that close to 18.
It looks to me like the parents are trying to hide him. It is a stupid move. He will either be extradited, or found guilty in abstentia. He will become a fugitive.
Also, if he is prevented from attending his own hearing against his will, there must be some legal repercussions for those preventing his attendance; kidnapping, false imprisonment, maybe?
Anyway, you will find out on the 15th.