Complex sentence: For three years starting in 2005, Max was harassed by a man named Justin Massler, who sent him repeated "Unabomber type" emails, and showed up uninvited to a 2006 party hosted by Max while dressed up as a superhero.
Split into simpler sentences: For three years starting in 2005, Max was harassed by Justin Massler. Massler sent him repeated "Unabomber type" emails, and showed up uninvited to a 2006 party hosted by Max while dressed up as a superhero.