Another link on this story has this to say:

The teen also told authorities her teacher had offered to let Bary stay at her house if she needed to get away from repercussions from her family because of her Christian faith. But when the FDLE interviewed that teacher, she told them she offered up her house because Bary’s brother was having parties with alcohol at the Bary home when their parents were out of town, and she had never been told about threats of danger to Bary because of her Christian faith.

As Killgore said earlier today: this is a fundamentalist brother who would kill his sister. Right.