Complex sentence: Cheban was born in Fort Lee, New Jersey as the only child of Russian-Jewish immigrants Mikhail, a diamond dealer (died 2011), and Galina, a real estate agent with Sotheby's.
Split into simpler sentences: Cheban was born in Fort Lee, New Jersey. He is the only child of Russian-Jewish immigrants Mikhail, a diamond dealer (died 2011), and Galina, a real estate agent with Sotheby's.