I got the smartest up here in queens.
a couple of bank robbers watched one of those amored trucks. Until they got a good idea where it will be on a given day. Then they walked up to it, pulled their guns on the people as the doors were opened. Grabbed some cash and got away. There were no shots fired, the cops is not sure if they had guns in the first place and it never showed up in the local news. They also don't have a clear description of the three people, because there were too many witnesses. The guards say they were young punks with one thirtish man there and my dad said it lloked like one of them were a girl ( the one the gaurds say were a thirty old man, some said they looked like they were got of school. I know of one cop on my block who complained about this the neighbors. how there is some many various descriptions of the robbers they aren't sure if the guards are the correct or not.
the robbers were sneaky, they didnot seems out of place and they weren't loud. So they didn't make a clear description for the witnesses to remember. Since there were no shots fired and this were done when our city is being plaqued with bank robberies this incident didn't even grace the papers.
anyway the guy who did that probably did it on the whim.