Complex sentence: Ali Hassan Abu Kamal was the Palestinian teacher who went on a fatal shooting rampage atop the Empire State Building carried a note blaming the United States for using Israel as "an instrument" against his people.
Split into simpler sentences: Ali Hassan Abu Kamal was the Palestinian teacher who went on a fatal shooting rampage atop the Empire State Building. He carried a note blaming the United States for using Israel as "an instrument" against his people.