I've been sitting on this one for a few weeks now, because it's really graphic. Horrific, really, and even more stupid than it is violent.
It's a fuck-up, dancing at a wedding, with his AK-47, getting so excited he kills 3 people.
And, no, it's not a Christian Conservative at a gay wedding... just an over-excited idiot going Gangnam Style...
PLEASE DO NOT WATCH THIS IF YOU THINK IT MIGHT UPSET YOU.