These two were not the only ones involved, but they may be the only ones who were caught and prosecuted.
Here's how it worked. A scout would peruse social media and dating websites for some potential victim who might fall for the scam. Then contact would be initiated with a story about how they were in the U.S. military. Then at some point the the victim would be asked for cash for travel expenses or for a satellite phone or some such. According to BBC 374 people were conned, and the scam netted over $1 million.
Check out the two beauty queens.
They were prosecuted in Colorado. But the irony is that these two were probably patsies themselves having been dumb enough to agree to be the ones who actually accepted the cash when it was tendered by the victim.