I cannot imagine waking on Mother's Day only to find my precious daughter missing. Then, as the day progressed, my child's found dead. My sincerest condolences are extended to the Bailey family. ** Sensitive content warning ** This is a crime of premeditated murder, jmho. I'm not sure what the motive was but there have been theories posted here that are probable. Students are not allowed to carry weapons to school so this guy didn't typically keep a knife in his pocket. Carrying the knife shows intent. Bludgeoning her with sharp instrument trauma multiple times indicates a person with rage issues. The ME will know if the knife injuries were inflicted after the head injury. Since I didn't see any large or small rocks in the area where this child was found, it's likely he smashed her head against a tree especially since the head injury was noticeable and obvious. I support him being tried as an adult even if it means he receives life. In determining whether or not he'll be tried as an adult, his juvenile record, if one exists, will be taken into consideration. Means, Motive, and Opportunity must be proven. The means was the weapon used, ie the knife. The opportunity is CCTV shows them walking down the street together after midnight. Maybe we'll learn the motive before trial but I understand he is not cooperating with LEO, probably following his attorney's advice.