I stand corrected,,,,
Coming from the land of the truly random driveby, Los Angeles, I can't tell you how much I appreciate the fact that they're reasonably good shots. In Los Angeles, drivebys usually take out everyone *but* the people they were shooting at.
Which is not to say that the Viet and Hispanic gangs in Houston wouldn't take out the amateurs from NO on general principles - they'd just be neater about it than you implied. :)