Updated

The attorney for a Florida Muslim cleric accused of supporting terrorists wants to learn the identity of a key FBI informant in the case.

Evidence shows the informant recorded numerous conversations with the cleric, 76-year-old Hafiz Khan. Khan's attorney says in court papers that learning the informant's identity is critical in preparing his defense. The informant helped drive Khan to appointments and assisted him in dealing with government programs such as Medicare.

The FBI recordings form the backbone of the U.S. case against Khan and his two sons. They are each charged with four terrorism support-related crimes and have pleaded not guilty. The charges each carry potential 15-year sentences. Three others are still at large in Pakistan

Prosecutors say they funneled at least $50,000 to the Pakistani Taliban terror group.