Who's the man seen wearing the ISIS logo in Houston?

HOUSTON -- A post that's been making the rounds on popular sites such as Facebook and Reddit have some concerned about ISIS activity in Houston.

It's more difficult than many may think to get some real answers or responses about the picture that has been going around. The photo shows a man supposedly wearing an ISIS logo at a Houston restaurant.

The FBI said they know about this story, but they were not aware of any arrests being made and were also unaware of any specific credible threats within the Houston territory.

So for now, a lot about the picture remains unknown, but it's definitely got a lot of people talking.