12-year-old in custody in Oklahoma for fatally stabbing 9-year-old brother while parent slept upstairs, police say

A 12-year-old girl is in custody in Tulsa, Oklahoma, after fatally stabbing her 9-year-old brother, according to police.

​A 12-year-old girl is in custody in Tulsa, Oklahoma, after fatally stabbing her 9-year-old brother, according to police.