Complex sentence: Jim was devastated in 1992 when Todd died of a cardiac arrest in hospital after being hit by an oncoming van while crossing a busy freeway, to prevent his girlfriend Phoebe from aborting their baby.
Split into simpler sentences: Jim was devastated in 1992 when Todd died of a cardiac arrest in hospital after being hit by an oncoming van while crossing a busy road. Todd had been rushing to prevent his girlfriend Phoebe from aborting their baby.