Firstly, Let Him Go. Secondly…

The FBI captain grabbed Xu Cheng and originally wanted to cross the street to the phone booth and call for help.

But who knew that a long truck would just directly drive up and stop in the middle of the street. 

This was clearly a sign warning them to not cross.

The captain directly pointed his gun at Xu Cheng and said, "Don't resist, this isn't a place ruled by Mexicans!" 

"I don't know what you are talking about. But, if you keep on pointing that gun at me, I will sue you for the mental damages you are causing me. Please understand the situation, right now you have no evidence to show that I committed a crime, and I've never been to the casino after coming to the M Nation this time. I'm a very reasonable guy. If you can reason, then I will reason with you. If you can't, then sorry, I'm not someone you can easily pick on too."

Xu Cheng looked at the captain right in the eye.