Complex sentence: When the man, Rhynwick Williams, an unemployed 23-year-old, reached his house, Coleman confronted him, effectively challenging him to a duel for insulting a lady and eventually took him to meet Porter, who fainted when she saw him.
Split into simpler sentences: When the man, Rhynwick Williams, an unemployed 23-year-old, reached his house, Coleman confronted him, accusing him of insulting a lady and challenging him to a duel. He eventually took Williams to meet Porter, who fainted when she saw him.