Sue Hartigan <[EMAIL PROTECTED]> writes: Mother found guilty of killing infant CINCINNATI, April 23 (UPI) A 24-year-old Cincinnati woman has become the first person to be convicted of aggravated murder under a new state law that makes the death penalty mandatory for killing anyone under the age of 13. A Cincinnati jury deliberated for about three hours today before finding Shawn Heard guilty of the Nov. 4 death of her 19-day-old son, Brendan Walker. Sentencing was scheduled for Monday. Heard lawyer John Keller said during his closing argument the death should have been ruled involuntary manslaughter since it was brought about by frustration when Heard couldn't stop her child from crying. He said Heard, described as ``developmentally handicapped'', was overwhelmed by being the mother of a newborn child. She was accused of shaking, striking and strangling the infant so viciously she left fingernail marks in the child's neck. -- Two rules in life: 1. Don't tell people everything you know. 2. Subscribe/Unsubscribe, email: [EMAIL PROTECTED] In the body of the message enter: subscribe/unsubscribe law-issues