A federal judge has delivered a harsh lecture to the Utah mother of a 2-year-old boy who died of heat exposure when left in the cab of a pickup truck. The judge then sentenced her to time served on an involuntary manslaughter charge.

U.S. District Judge Lloyd George Tuesday told Cornelia McCook, 22, Salt Lake City, that it was time for her to begin taking responsibility for her actions.Tawnchi McCook died after he was left in his parents' pickup truck at the Moapa Indian reservation northeast of Las Vegas in August of 1989 while temperatures soared above 100 degrees.

The family was returning to their home in Salt Lake City from a trip to Southern California.

Cornelia McCook and her ex-husband, Larry McCook, were indicted after an FBI investigation. He is serving 31/2 years in prison for the child's death. She contended she was a battered wife. And she said she could not come to her son's aid because her husband was raping her in the back of the truck.