Complex sentence: Mike Kaufmann (born Michael Kaufmann, in Oakland, California on April 19,1966) American heavy metal bass guitarist is best known as the bass player for the thrash metal band Defiance.
Split into simpler sentences: Mike Kaufmann (born Michael Kaufmann, in Oakland, California on April 19,1966) is an American heavy metal bass guitarist. He is best known as the bass player for the thrash metal band Defiance.