The mystery of Southern California’s notorious “Jetpack Man” may have just gained a bizarre new chapter. A pilot flying into LAX reported seeing what appeared to be a person in a wingsuit or possibly a skydiver soaring thousands of feet above the ground Sunday afternoon — reigniting speculation the enigmatic figure who baffled authorities years ago may be back. The startling sighting occurred as the crew of a Gulfstream jet was making its final approach into LAX. “We just had somebody cross