What stood out to me about this article is that both neighbors interviewed kept emphasizing how quiet it was that night and how abnormal that is. They mentioned the King Rd house always having parties/get-togethers on weekends especially and that there had been a few noise complaints to the home. The female neighbor mentioned having to routinely wear earplugs to be able to sleep due to noise. Now, both of these neighbors seemed to take this all in stride and even joke about the party scene.
But it got me thinking that if it really was that frequent as to be super abnormal that it was quiet the night of the murders, maybe another neighbor wasn't so cheery about it. If it was so loud overnight often that some neighbors had to wear earplugs, maybe someone else was driven to the point of rage. I want to be clear I am NOT placing any blame on these college kids throwing parties. Just saying that it sounds like it was common for it to be loud and not everyone who lives around there is a college student (one of the people interviewed in that article works at a restaurant and is not a student; the other is a 29 year old grad student, so past the point of house parties). So others who live nearby may be older/not students and angry about the noise. Maybe they waited for a night that had no parties to strike. JMO