NEW BRUNSWICK - A Middlesex County judge has rejected a defense lawyer's motion to throw out a murder charge against a woman on trial for killing her 5-year-old son in 1991.

Michelle Lodzinski's lawyer made the motion after prosecutors wrapped up their case, but it was denied Wednesday. Gerald Krovatin is now expected to begin calling defense witnesses on Thursday.

Prosecutors contend Lodzinski killed Timothy Wiltsey in May 1991 and then made up a story about his being abducted from a carnival in Sayreville.

The boy's remains were found nearly a year later in a marshy area several miles away in Raritan Center.

Jurors have heard prosecution witnesses testify that they recognize a blanket found near the boy's body as having come from Lodzinski's apartment.

Krovatin says prosecutors don't have any forensic evidence tying her or the boy to the blanket.

The Associated Press wire services contributed to this report.