In the cases that were discussed they replied as though they were going to help and followed through to a meeting (exchange of cash) at which point they were arrested.

I would however say that for those people foolish enough to think they are about to make a killing it may in fact be they who are killed. On some occassions when people met to give these people money - help bribe customs etc etc they were killed and robbed. It is amazing what some people will do for a quick buck!