I don't think they ever did reveal who shot him but I got the feeling it was someone who he robbed and not his friends from the bar. He probly never found out either.
I have to say I don't really consider this to be a major spoiler. After all, it's not as if the plot of this movie centers around two men trying to outdo one another at not getting shot, and then all of a sudden: "Holy *beep* Brian got shot! What a twist!" As it turns out, Brian getting shot isn't even the most impactful scene out of all the scenes where a person is shot, imo.
i know a hoodie is well worn by alot of people. but when paulie comes to Matt's place and says, "get him so some clothes", matt brings him a hoodie....
If you haven't watched a movie, it is usually a bad idea to come and read the boards, since obviously all you're gonna find it's people talking about such movie...
I thought it was either Brian's wife, his older kid, or maybe his wife's female friend who disapproved of Brian. If you notice, the person who shot him was short.
That would be cool if the following scene shows the hooded figure getting home, taking off his hoodie, turning to the camera, revealing himself to be Brian's older kida nd then smiling directly into the camera, demonically, while Omen-type music plays. That would've scared the sh*t outta me.