Skydiver Almost Hit by Plane

While doing a 6 way high pull, an unidentified aircraft buzzed right through our group. The jumper with the yellow canopy estimated that plane came about 100 feet from him. Our jump pilot was communicating on both the local CTAF and the Memphis Center frequencies. A NOTAM is also in place for this airport. We examined other jumpers videos to attempt to pull the tail number, but were not able to get a clear view of it.