The FBI has opened an investigation into allegations of federal rights violations following the deaths of two inmates at the Harris County Jail in Texas after a request by the sheriff's office. "Being a former employee in Harris County working for pretrial (services), I've literally witnessed correctional staff mistreat detainees because they were in need of insulin for diabetes or other medical issues, and I've literally witnessed them being the reason for altercations taking place between them and detainees, and it's not fair, and it's not right," Ariana Pillow said between tears. ABC News reached out to the Harris County Sheriff's Office and has not yet received a response