It sounds like whoever murdered the 4 people was super angry.

That just makes me wonder if it was personal (or at least someone who had an argument with one or all the victims), or if it was just some random psycho who let loose.

2 victims knew each other from high school, the one dude (I assume) is the boyfriend, and the other is somebody else.

I'm kinda hoping that the police know who the suspect is, but don't want to say anything because they don't want them to make a run for it.