Woman found two guns in a violin case along Potomac River in Washington D.C.Police found more guns and ammunition stashed in pails and bags nearbyAuthorities were trying to work out why the weapons were left there The D.C. police bomb squad conducted a sweep of the area soon afterA number of weapons, including two guns in a violin case, have been found stashed along the Potomac River in Washington D.C. U.S. Park Police said a woman walking in the woods near the C&O Canal, which runs along the river, found the case on Wednesday. When police arrived they found...