He was on the His n Hers fishing about 15 miles offshore at Barnegat Ridge with his stepson and a friend. A guy on another boat filmed the shark. That's why in the video it's mis-identified as a great white. In reality it was a basking shark, about 20' long. Any way you look at it, still a big shark.
Here you can see the boat His n Hers starting at 0:16. Shark looks like a mini submarine.