As of this writing, there's still no definite word on the cause of death, but Nate Dogg, born Nathaniel Dwayne Hale (August 19, 1969 - March 15, 2011)had had some ongoing health issues since 2007 after suffering a series of strokes. I'll be the first to admit that listening to music during and after the golden age of Hip Hop where West Coast Hip Hop was on the raise that Nate Dogg annoyed me for no other reason that he was featured on so many damn songs, but for no other reason.
Nate Dogg helped put West Coast on the map, he was a major factor that contributed to define the sound of the G-Funk Era in the same way that Maceo Parker helped define that James Brown sound. Would West Coast be what it was without Nate Dogg? Yes, probably, but he helped it so much that the sound itself is that much more unique. As life goes on in Hip Hop we lose many Rappers, Emcees, or whatever we call them and with each of their passing, the era of Hip Hop that WE love grows smaller and smaller...
Nate Dogg was 41 years old and like many others before him, he was far too young and will be sorely missed.