The latest developments in a string of jewelry store robberies across the South (all times local):

2 p.m.

The suspect in a series of jewelry store robberies across the South wept softly as she was led from a federal courtroom in Atlanta after her first appearance before a judge.

A criminal complaint accuses 24-year-old Abigail Lee Kemp of conspiring with others to rob stores in Georgia, Florida, South Carolina, North Carolina, and Tennessee. The FBI says she was apprehended in the Atlanta suburb of Smyrna, Georgia, along with a person who was with her at the time. Authorities haven't identified that person.

At Thursday's hearing, Kemp said little except to answer yes to a few routine questions from U.S. Magistrate Judge Linda Walker, who set a Thursday hearing to decide conditions of Kemp's detention and appointed federal public defender Rebecca Shepard to represent her. Shepard declined to comment later.

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7:45 a.m.

Newly filed court records say the FBI zeroed in on a woman suspected in jewelry store robberies across the South after analyzing cell tower information, finding that one specific phone number showed up at or near jewelry stories in Georgia, Florida and South Carolina while they were being robbed.

The records detail how authorities then used the phone number to identify a suspect, 24-year-old Abigail Lee Kemp, and found a photo of a maroon Honda Civic on her social media accounts that matched the description of one seen in surveillance video.

Kemp was arrested Friday in the Atlanta suburb of Smyrna, Georgia, along with one other person with her at the time, the FBI said late Saturday. Authorities haven't identified the alleged accomplice.

Federal court records do not list an attorney for Kemp.