He didn't necessarily know the guy. He may well have known of the guy, I'm not denying it - as far as knowing the guy is a pickpocket, not as an accomplice - I doubt the driver would have said anything in that case. Besides, bus drivers make good money here, sometimes more than doctors.
It's a common practice for thieves to take advantage of a press of people exactly like this guy did. Could be the driver saw, in his mirrors, no more than the guy getting half on and jumping off as the doors closed and that was enough for suspicion.
My sister-in-law was robbed on the subte once in a similar manner. The car was crowded, but not enough to be a big problem. She got on and moved away from the door. Two guys who had been waiting on the platform near her crowded in behind her, pretending like there wasn't enough space to get on and were being pushed from behind, pushing into her, then jumped out as the doors were about to close. She reached into her purse as the train started moving and realized her cell phone was gone.
It's a common practice for thieves to take advantage of a press of people exactly like this guy did. Could be the driver saw, in his mirrors, no more than the guy getting half on and jumping off as the doors closed and that was enough for suspicion.
My sister-in-law was robbed on the subte once in a similar manner. The car was crowded, but not enough to be a big problem. She got on and moved away from the door. Two guys who had been waiting on the platform near her crowded in behind her, pretending like there wasn't enough space to get on and were being pushed from behind, pushing into her, then jumped out as the doors were about to close. She reached into her purse as the train started moving and realized her cell phone was gone.
