MARION COUNTY — The postponed sentencing hearing for a 24-year-old Salem woman convicted of  the 2015 first degree murder of her 3-month old daughter is set for this afternoon in Marion County Court.

An April sentencing hearing for Christina Thomason was postponed last month and rescheduled for this afternoon.

Thomason could be sentenced to between 20 and 60 years in prison. However, her defense attorney Matt Chancey, has filed a motion seeking a new trial in the case. A hearing on that motion is also scheduled for this afternoon.

Thomason was convicted in February after a Marion County jury took just three hours to deliberate and find her guilty of smothering her infant daughter Aribella to death.

Evidence showed that had Aribella not died of asphyxiation from blankets piled on her face and pressure applied to her chest, she would have died from the lethal dose of liquid antihistamine Thomason had given her. The medicine had been prescribed to Thomason’s older daughter.

Thomason has pleaded not guilty to felony charges of attempted escape and damage to government owned property for allegedly attempting to remove an air vent in the Marion County Jail as she awaited the jury trial on the first degree murder charges. A pre-trial hearing in that case is also scheduled for this afternoon.