Danielle Elias Reports
This was Arnold's second trial, because a mistrial was declared back in February when a new witness came forward.
That star witness for the defense was an 8-year-old boy who claimed he watched another child put one-month-old Paris Talley, in the microwave oven.
Prosecutors said Arnold killed her baby after fighting with her boyfriend about whether he was the biological father.
Arnold could face the death penalty now that she has been convicted.
When the verdict was read, Arnold showed no reaction and then lowered her head, looking down at the defense table.
Relatives in the courtroom cried and covered their faces with their hands.
Previous Stories: August 28, 2008: Jury Deliberates In China Arnold Trial August 27, 2008: New Developments In China Arnold Trial August 26, 2008: Witness Said A Child Put Baby In Microwave August 21, 2008: Former Cellmate Testified In China Arnold Trial August 20, 2008: Testimony Continues In China Arnold Retrial August 18, 2008: Defense Says Child Killed Baby In Microwave Oven August 15, 2008: China Arnold's Second Trial Begins Monday August 12, 2008: Jury Selection Continues in Microwave Baby Case August 11, 2008: Mom Accused of Microwaving Baby On Trial Again