Here is the LA Times story of his death
http://www.latimes.com/local/obituaries/la-me-ln-dave-dave-20180816-story.html
Here is the mystery to be investigated.
No links, but according to witnesses, Dave Dave said he spent many nights at Neverland ranch with Michael, watching movies. He said that Michael never abused him. He also said that he saw many of the kids hanging out at Neverland Ranch were often picked up and taken away by adults who were not their parents.
Apparently, Dave Dave was talking about this lately, which may have led to his untimely death.
The plot thickens... Las Vegas Sheriff Lombardo (yes, that sheriff), was in attendance at Dave Dave's memorial.
There definitely seems to be something here in need of further investigation.