Complex sentence: Jason Cropper (born 1970 Oakland, California) was an original guitarist for Weezer, and as such was present at the band's first practice on February 14,1992.
Split into simpler sentences: Jason Cropper (born 1970 Oakland, California) is an American musician. Cropper was the original guitarist for Weezer, and as such was present at the band's first practice on February 14,1992.