^I put spoiler tags around that bit for you.
Also, I think that was probably the single best part of the entire series because:
[spoiler:2hd21gd1]The entire show was meant to be grounded in realism, and yet throughout the series it was building up some larger than life characters, Omar especially. Omar was getting into levels of comic-book style heroes towards the end, and I think that giving him such a mundane death was a brilliant move. It showed that 'The Wire' was still set in reality and even for the most feared, respected and skilled man on the streets, he's always one stray bullet from death. When you take away all the stories and bravery and skill, he can still be killed by some little shit with a pistol. I don't think most shows would have the balls to kill off a fan-favourite character like that, and I'm really glad they did.[/spoiler:2hd21gd1]