new startling image out of the boston marathon bombing trial are adding to a stunning story of escape. dun meng a businessman in china crouched down in fear and pleading with the gas station to call 911, three nights after the bombing at the marathon's finish line. more video shows him making a daring sprint from one gas station to another across the street. he testified it was the most difficult decision of his life to make a run for it waiting until he says dzhokhar tsarnaev was inside buying snacks and tamerlan tsarnaev had his hands busy. finding refuge across the street he made crucial contact with 911. >> he told police his phone and gps were inside the car tools that were used to close in on the suspects.