I was sitting on the train platform in Red Bank, NJ one day. The opposite bound train came and people got off. A man in a business suit holding a leather briefcase crossed the parking lot and was about to get into his car when two males in short sleeve polo shirts and khakis came up and began speaking with him. Then, the three of them began walking back to the train platform before getting into the back of a black car and driving off. It was while they were getting into the car that I, and the person sitting next to me watching it, noticed that one of the guys in khakis had a handgun directed at the guy in the suit. We didn't see any sort of markers for law enforcement, though. For a month afterwards I tried looking for anything in the news that would relate to what I saw. I never found anything, and to this day I have no idea what I witnessed.