What do you think the NSA and MI have amazing face recongizing technology? They also have access to all the media coverage of every shooting or event in the last 15 years. You could say they could run the whole load through their programs. They could create a massive data base of false flag operators. They could see hubs in these networks then follow the leaders fake ID's around the country and have an idea of where the next event is going to take place. Then they have to watch a couple go down from start to finish as they record every detail.
Then when the time is right they leak to friendly places the clues to where people can find the similiar pictures. Leak some leads.
And this is where we came into the picture.