Complex sentence: She was released in 2001 and said she moved to New York City to be closer to her son, Joshua Todd Aron, a graduate of Cornell University who was working at Cantor Fitzgerald at the time of his death.
Split into simpler sentences: She was released in 2001 and said she moved to New York City. Her son Joshua Todd Aron was a graduate of Cornell University who was working at Cantor Fitzgerald at the time of his death.