Complex sentence: Williams, known as "Prince" Charles, turned pro in 1978 and in 1987 he captured the IBF Light Heavyweight Title by TKO'ing Bobby Czyz in the 9th round.
Split into simpler sentences: Williams, known as "Prince" Charles, turned pro in 1978. However, in 1987 he captured the IBF Light Heavyweight Title by TKO'ing Bobby Czyz in the 9th round.