Complex sentence: For most of his adult life, Prof. Israel Shahak, Ph.D., resided in the Rehavia neighborhood of West Jerusalem; he died at the age of 68, from diabetic complications, and was buried in the Givat Shaul cemetery.
Split into simpler sentences: For most of his adult life, Shahak lived in the Rehavia neighborhood of West Jerusalem. He died in Jerusalem at age 68 due to complications from diabetes and was buried in the Givat Shaul cemetery.