An Anoka County inmate first dubbed "Jane Doe" for two weeks until she was finally identified continues to baffle authorities, the Star Tribune reported.

What authorities know about Tammy Anquinette Thomas, 37, is that she last lived in a small town in Illinois, until she was arrested and charged with burglary in July. She wouldn't speak after her arrest, and refused to let her mug shot be taken properly or give finger prints -- so officials eventually lifted those off a drinking glass.

The Star Tribune reported that Thomas, who will only answer to "Jane Doe" in court, has had no visitors, made no telephone calls or written no letters during her four-month incarceration.

Thomas, who denied a psychiatric evaluation in August, was reportedly sent by a judge last week to St. Peter so doctors would have a chance to measure her competency.

Thomas' public defender told the Star Tribune that Thomas could have been out of jail by now if she had pleaded guilty to the charges.