People blaming rap music for this woman's death, or violence in poor, black communities general, simply cannot live in the real world.
First off, as someone else in this thread pointed out, violent crime is down across the board, despite what you've seen in all your time spent watching WSHH videos. Second, as was also mentioned, violent crime was, in fact, much higher in previous decades when rap music wasn't even being played in these neighborhoods. To summarize: as the popularity of rap music has increased, violent crime has gone down.
Now, this alone doesn't prove that rap music has absolutely no influence on violent crime in these neighborhoods, but it does suggest its role is exceedingly small-- small enough to be considered insignificant in the grand scheme. If the people who crusade against rap music were actually interested in the people in these neighborhoods and their problems, spending their time crusading against rap music would not only be a waste of time and resources, but it would cause harm to the very people they claim to want to help.
If you're interested in helping those in poor neighborhoods change their situations there are serious ways to go about it. Criticizing rap music isn't one of them.
We also have to question the principles and seriousness of those individuals who claim rap music has a major role in influencing violence in poor neighborhoods but still continue to support and champion those rap artists who make violent rap music.