This is no surprise. No where in North America, as far as I can tell, would a 13-year old girl be given an adult sentence even based on a crime just as this. The below also doesn't help her sentence:
"In his charge to the jury, Brooker noted that both the Crown and defence agreed that it was the girl's 23-year-old boyfriend, Jeremy Steinke, who physically stabbed and slashed the three family members to death." Link.
"In his charge to the jury, Brooker noted that both the Crown and defence agreed that it was the girl's 23-year-old boyfriend, Jeremy Steinke, who physically stabbed and slashed the three family members to death." Link.