Sound Koool G Murder Biography Kelly 'Rusty' Logsdon, aka Koool G Murder, is a musician who became a member of the band Eels in 2001. Acting From the Basement Self - Eels 2009 Other Credits Jackass Presents: Bad Grandpa .5 Music 2014 Jackass Presents: Bad Grandpa Original Music Composer 2013 Tremendous Dynamite: Making Hombre Lobo Recording Supervision 2009 Agent-readable