Complex sentence: Kwon reportedly spent four or five days preparing Bill Baroni, the PANYNJ deputy executive director, who during his November 2013 appearance before the NJ Assembly Transportation Committee who claimed that the lane closures were part of a legitimate traffic study.
Split into simpler sentences: Kwon reportedly spent four or five days preparing Bill Baroni, the PANYNJ deputy executive director for his November 2013 appearance before the NJ Assembly Transportation Committee. At that time, Baroni claimed that the lane closures were part of a legitimate traffic study.