There appears to be a valid claim that the kid was entrapped. I realize that it is a fine line between an undercover operation and outright entrapment, but the kid is only 19. That is a very impressionable age and the possibility exists that the FBI may have crossed the line here. All I have to go on is the media reports but I think it looks like there is enough for an investigation into the handling of the case. This could be for any number of non-exclusionary reasons. The FBI agents wanted a collar to justify their jobs an gain favour for future promotions. The FBI brass wanted a high profile collar to justify the expenditure of resources on the investigation. The FBI agents simply got caught up in their efforts and may have honestly believed that the kid was a potential threat and stepped over the line in their zeal to make the case.