It started of with Puck, Kurt, Finn and Blaine going to a diner/cafe/restaurant after an outing or event. It was late, I think, so there weren't many other people around. I forgot why, or even if there's a reason (though I think it has something to do with Kurt being gay?), but one man - either he came in after the 4 of them did, or was already there - pointed a gun at them. At one point the shooter forced Kurt to choose who would get shot. Kurt was scared but he also didn't want to choose, but Puck told Kurt to say him. Kurt did, while crying and saying sorry, and Puck got shot.</div>
That's the only part I remember vividly, though I may have gotten some facts wrong. There's a hospital stint for Puck, and Kurt feeling guilty. I'm not sure if Klaine was a thing in this fic, but they were close at least, and I think Blaine wasn't very understanding about why Kurt felt responsible so there may have been some slight Blaine bashing.