Complex sentence: Trippe suffered a stroke in September 1980, which forced him to cut back on his workload; he died after suffering a second stroke at his New York City home on April 3,1981, at the age of 81.
Split into simpler sentences: Trippe suffered a stroke in September 1980 which forced him to cut back on his workload. He died after suffering a second stroke at his New York City home on April 3,1981, at the age of 81.