A central Illinois woman convicted of suffocating her 3-year-old autistic daughter is seeking a new trial.

Karen McCarron of Morton is citing ineffective defense in her request for a new trial. A year ago an appeals court upheld her conviction in the 2006 death of her daughter Katie.

The latest petition was filed Wednesday in Tazewell County Court. In it, McCarron states that her defense attorney allowed perjured statements and a confession.

McCarron is serving 36 years for first-degree murder, obstruction of justice and concealment of a homicide. She is incarcerated at Dwight Correctional Center.

A hearing in the case is set for Sept. 28.