India, Jan. 3 -- An Ohio-based dentist, Spencer Tepe, and his wife, Monique Tepe, were found dead after a welfare check at their home in the 1400 block of N. 4th Street, Columbus police said. The couple's two children, who were also inside the house, were unharmed. The killer remains on the loose.

"Two small children were also found in the residence unharmed," police said. CNN affiliate WSYX reported that officers found no signs of forced entry, and no firearm was found at the scene. Spencer's, 37, and Monique's, 39, deaths are now being investigated as a double homicide.

Officers responded to a welfare check call just after 10 AM on December 30. When they arrived, they found two adults with apparent gunshot wounds. The two victims were...