Complex sentence: He underwent treatment in Ruston and Monroe as well as The University of Texas M.D. Anderson Cancer Center in Houston, but died at the age of forty-three at St. Francis Hospital in Monroe, with his grandmother at his side.
Split into simpler sentences: He underwent treatment in Ruston and Monroe as well as The University of Texas M.D. Anderson Cancer Center in Houston. He died at the age of forty-three at St. Francis Hospital in Monroe, with his grandmother at his side.