Three-month-old Khaiden Hockett.was found unresponsive a year ago inside the couple's Richmond home. The cause of death was dehydration due to starvation.
Wayne County Prosecutor Mike Shipman told jurors Khaiden was born a healthy 8 pounds, 7 ounces, but weighed just over 6 pounds at death.
Pierson's attorney, Michael Dean, said his client believed the infant was receiving care based on lies Hockett told him.
Hockett's attorney, Patrick Ragains, argued she did not commit murder.