Yeah he died a few years ago, he was floating on a river(singing Whole Lotta Love apparently) and he got sucked under a tugboat and died as a combination of being beaten by the engine and eventually drowning. Sad I know. His dad, Tim Buckley died young too, in a car crash I think.

I dunno why the band is called Jeff Buckley but he did most of the songwriting, production etc. plus he was the singer and guitarist.