inseparable. then one ended up missing. nobody s heard from her. nobody knows where she is. something s wrong. something s bad wrong. where was skylar? someone was hiding something. it was the fbi. they were serious. twitter, instagram, facebook. you just see things start to get ridiculously out of control. a clique of mean girls. were they mean enough to kill? she was like, well, she ll blackmail me. it was such a shocking and scandalous kind of case. this was diabolical. evil comes in all shapes and sizes. hello and welcome to dateline. for skylar neese s parents their teenage daughter was all they could have hoped for. a straight-a student with lots of friends and happy at her part-time job. but then their world turned upside down when their only child seemed to vanish without a trace. at first police thought she ran away. but hints on social media would point to a more sinister reason for her disappearance. here s andrea canning with something w