Plainclothes police chased a man in a thick coat through a subway station, wrestled him to the floor and shot him to death in front of stunned commuters Friday. Police said the shooting was “directly linked” to the investigations of the bomb attacks on London’s transit system. Appealing for help from the public to capture the suspects, police released photographs of four men suspected of launching Thursday’s second wave of terrorist attacks, saying they bore similarities to the July 7 bombings that claimed 56 lives. Full Story