The incident happened Sunday afternoon in Washington Township, in Gloucester County.
The 49-year-old victim, Arkady Shenker, was wearing a wing suit allows a skydiver to move forward while descending and is said to have been an experienced diver with more than 350 jumps.
He had just jumped with 15 others from a plane operated by a Monroe company called Freefall Adventures.
The cause of the fatal accident has not yet been determined, and it is unclear if the specialized suit opened properly.
Several families were outside celebrating Easter when they spotted Shenker falling and knew something was wrong. They rushed to see if they could help, but it was too late.
There has been no comment yet from the Freefall Adventures. In 2011, the mayor of Rutledge, Pennsylvania, died while parachuting from a plane operated by the same company.
The prosecutor's office and police are investigating.