A 23-year-old man charged with killing his girlfriend's 3-year-old daughter appeared before a judge Friday. Police arrested Fredy Alexander Chingo Riz, of Willimantic, on Thanksgiving Day. State police began an investigation Wednesday night after the victim, 3-year-old Athena Angeles, was taken from her home at 112 Hope Street in Willimantic to Windham Memorial Hospital in cardiac arrest. She died at the hospital. Thursday, the Office of the Chief Medical Examiner concluded the toddler died of blunt abdominal and chest trauma and ruled the death a homicide, police said. Chingo Riz, an illegal immigrant here from Guatemala, admitted to police he...