Complex sentence: When Behan first arrived in Tombstone in September 1880, he also got a job bar manager in the Grand Hotel, a favorite of the outlaw Cowboys, and a good place to make political connections.
Split into simpler sentences: When Behan first arrived in Tombstone in September 1880, he worked as bartender in the Grand Hotel, a favorite of the outlaw Cowboys. Behan also took a job as bar manager at the Grand hotel, a good place to make political connections.