terrorism. they say it's unusual circumstances. on sunday afternoon the former russian spy and his daughter were seen on surveillance camera walking about 100 miles south of london. 30 minutes later both were found collapsed on a bench. watch this. >> their eyes were completely white and they were frothing at the mouth. they were looking dead straight. >> investigators are retracing the victim's steps to get a better idea of what they consumed. sergei is a former russian army intelligence office that admitted pate secrets along. he was set free in 2010 during the prison swap with the u.k. and u.s. what involved chapman