Complex sentence: All of Nilsen's murders were committed inside the North London addresses where he alternately resided in the years he is known to have killed; his victims would be lured to these addresses through guile--typically the offer of alcohol and/or shelter.
Split into simpler sentences: All of Nilsen's murders were committed inside the north London addresses where he alternately resided in the years he is known to have killed. His victims would be lured to these addresses through guile--typically the offer of alcohol and/or shelter.