Cobb County Jail

My friend was taken to your jail sometime early this week. I just heard the news about this last night. I need to know the address there so that I can send him letters, and also when and where the visitation hours are and how i must go about setting up a visitation appointment to see him. i also need to know if he will be appointed a lawyer, or if we need to figure out other arrangments for such things. thank you so much. hope to hear from you soon. thanks again.