Complex sentence: Tipton and his family had opened the first videocassette rental stores in St. Louis in 1980; their business was largely destroyed by a campaign of Christian fundamentalists who objected to the chain's carrying the film "The Last Temptation of Christ" for rental.
Split into simpler sentences: Tipton and his family had opened the first videocassette rental stores in St. Louis in 1980. Their business was largely destroyed by a campaign of Christian fundamentalists who objected to the chain's carrying the film "The Last Temptation of Christ" for rental.