Complex sentence: Spider-Man is looking for a missing woman named Tricia and investigating the death of Donald Phillips, an honor roll student who died from a heroin overdose, despite a lack of evidence that he had ever used heroin.
Split into simpler sentences: Spider-Man is looking for a missing woman named Tricia and investigating a death. Philips was an honor roll student who died from a heroin overdose, despite a lack of evidence that he had ever used heroin.