The Golden Eagle was for a long time one of the worst residential hotels in the world, I hear they cleaned it up some, so now its only one of the worst in the nation. Though it's the first time I've heard of a murder there.
On the other hand, SF has the worst homicide solution rate of any major police department, (in like the 30%) range - yes Virginia, you can get away with murder here - so its not like they are going to solve it or anything.
And when someone says - he could smell crack "wafting down" from the unit – "that acrid, chemical smell. Nothing else smells like it." - well, I tend to believe him because he is right, nothing smells like crack being smoked, and once you know what it is its as distinctive a smell as anything else in the world.
It's a shame so young and all, and no mention of a job, or education level, but its a very hard place to get on in if you don't have basic skills.