A convicted child sex offender was executed Wednesday for the beating death of a 10-month-old boy he was baby-sitting at a home in Dallas. Jesse Joe Hernandez smiled and laughed at times before receiving a lethal injection for the slaying of Karlos Borja 11 years ago. "God bless everybody. Continue to walk with God," the 47-year-old Hernandez said. Moments later, he shouted "Go Cowboys!" in honor of his favorite football team.