PUNTA GORDA — Linda Fay Dille pleaded not guilty to two counts of felony perjury Monday at the Charlotte County Justice Center in connection with the 2001 murder of Tara Sidarovich.

According to Dille’s attorney, Russell Kirshy, a written plea of not guilty was entered on Dille’s behalf, but he declined to comment further on the case. Dille also could not be reached for comment Monday.

Dille, 46, of the 27000 block of Fairway Drive, Punta Gorda, was the former live-in girlfriend of Phillip Gavin Barr, 43, one of two men charged with the murder of Sidarovich. Barr was returned to Charlotte County on Thursday following his November arrest in Hardwick, Vt. The second man, David Wayne McMannis, 39, was captured in Cum­ber­land, Md., in October.

Both are charged with first-degree murder. McMannis and Barr reportedly were the last people to see 19-year-old Sidarovich alive when they went to her family’s Westwood Drive home to give an estimate for septic-repair work, authorities said. McMannis and Barr allegedly kidnapped Sidarovich, killed her, and disposed of her remains in a wooded area east of Burnt Store Road.

Meanwhile, authorities believe that Dille was not truthful when questioned about Sidarovich’s murder in 2002.

Authorities say Dille lied about cell phone calls between her and Barr on Oct. 1, 2001, the day of Sidarovich’s disappearance. Dille had told authorities that she and Barr had spoken via cell phone, but they later discovered that the cell phone service was suspended and the phones were inoperable. Dille also is accused of lying about the whereabouts of a pickup owned by her that was used by Barr that day.

Dille was released from the Charlotte County Jail Nov. 15 on $5,000 bond. Dille’s next court date in Jan. 24. Barr is scheduled to be arraigned on Jan. 18, and McMannis has a case-management conference scheduled for Jan. 16.

Email: dwinchester@sun-herald.com