i'm catherine kobiyashi in tokyo. police in thailand are learning more details about the man they believe is behind monday's deadly explosion in bangkok. they now say he went to the bombing site by a taxi. the explosion at a popular shrine left 20 people dead and 125 wounded. police say security camera footage shows the man leaving a backpack containing the bomb at the site. they say the suspect boarded the three-xwheeled taxi on monday near police headquarters 4 kilometers west of the explosion site. they say the man showed the driver the screen of his mobile phone to indicate his destination. he didn't talk with the driver but spoke on the cell phone in a foreign language. authorities questioned two other men an appearing to provided him with cover placing the backpack at the shrine. they confirm one was an hourist and the other the guide. they say neither is linked to the attack. >>> an event is postponed. it's one of the largest of its kind in the capitalment it attracted about 300,000 people last year. this year'