Four family members, including an infant, who were kidnapped Monday morning from a business in Central California's Merced County have been found dead, authorities announced Wednesday night."Our worst fears have been confirmed," Sheriff Vern Warnke told reporters Wednesday night.Warnke said the bodies of the four victims were discovered at about 5:30 p.m. local time by a farm worker "during the course of his job duties."The video shows the man exiting the building with Jasdeep and Amandeep, who are both zip-tied at the hands, and placing them in the back of a pickup truck.The investigation was prompted when a pickup truck registered to Amandeep was found ablaze late Monday morning on a rural road in Winton, a community a few miles north of the city of Merced, the sheriff's office said."