Complex sentence: Robert Emmet Chambers, Jr. (born September 25,1966), nicknamed the "Preppie Killer", is an American who pled guilty to manslaughter in the death of 18-year-old Jennifer Levin.
Split into simpler sentences: Robert Emmet Chambers, Jr. (born September 25,1966), nicknamed the "Preppie Killer", is an American criminal. He pled guilty to manslaughter in the death of 18-year-old Jennifer Levin.