Born to a Jewish family , Litwin began his career in the nursery business with his father . In the 1950s , however , Litwin became interested in real estate development and began building high-rise apartment buildings on Manhattan 's Upper East Side . In the 1960s Litwin built what was then city 's largest luxury high rise , The Pavilion . His Liberty Plaza , a 45-story apartment rental complex , was the first new building to rise in Manhattan after the September 11 attacks
September 11 attacks
September 11 attacks
Leonard Litwin