Complex sentence: Daniels and his friend Scott Lucas started jamming in 1987, while attending high school in Zion, Illinois and eventually formed Local H in 1990, along with bassist Matthew Garcia, who left the band in 1993 and was never replaced.
Split into simpler sentences: Daniels and his friend Scott Lucas started jamming in 1987, while attending high school in Zion, Illinois. They eventually formed Local H in 1990, along with bassist Matthew Garcia, who left the band in 1993 and was never replaced.