News 9 reports law enforcement agencies all over Jefferson County were made aware of the posts made by 15 and 16-year-old girls.
Officials say the two that caught the attention of investigators threatened homicide and a beating. Police took those threats seriously, quickly finding those posts and locating the two teens thought to be responsible, arresting and charging them.
One teen apologized on twitter before her account was deleted.
Both teens spent the night at the juvenile justice center.
They have a court appearance scheduled for today.