Complex sentence: Maguire tracks him and his son to a roadside diner, but fails to kill Sullivan; realizing Maguire's intentions, Sullivan escapes through the bathroom and punctures Maguire's car tire before fleeing.
Split into simpler sentences: Maguire tracks him and his son to a roadside diner, but fails to kill Sullivan. Having realized Maguire's intentions, Sullivan escapes through the bathroom and punctures Maguire's car tire before fleeing.