Police and bomb sniffing dogs spent a good portion of the day on Wednesday ruling out reported bomb threats at several colleges. One of the threats was at Eberly College of Arts and Science at West Virginia University. Pierpont, BridgeValley and New River Community and Technical Colleges also received threats that proved to be a hoax. After giving the all clear on the campuses, police investigators are working to find the person or persons who phoned in the threats.