This is the first shark attack death in MA in more than 80 years, according to People Magazine.
The unidentified swimmer was reportedly in the water off of Cape Cod's Newcomb Hollow Beach when he was attacked around noon.
He was taken to Cape Cod Hospital in Hyannis, where he died, State Police spokesman David Procopio said in a statement.
Cape and Islands District Attorney Tara Militmore named Mr Medici has the man who had died.
Reynolds said Seashore rangers and Wellfleet police performed CPR on the victim on the beach after the bite.
It has been 82 years since a shark attack claimed a life in MA.
A 61-year-old man was severely injured after fighting off a shark near Truro, Massachusetts in August. He's now recovering in a Boston hospital. The patient is being transported to Cape Cod Hospital via ambulance.
'There'll be a determination later about what the town wants to do with the beaches going forward, ' Wellfleet Police Lieutenant Michael Hurley said.
Two people look out at the shore after a reported shark attack at Newcomb Hollow Beach in Wellfleet, Mass. "15ft wide. I saw a tail and a lot of thrashing", Joe Booth said.
Great white sharks, apex predators, inhabit the waters off the Cape.
Hayley Williamson, a Cape Cod resident and former lifeguard who was on the beach at the time, was left in disbelief.
Reinhart said she hoped to discuss the incident with fellow Select Board members before saying anything further.
The fatal attack happened at around midday on Saturday, Setember 15th at Newcomb Hollow Beaching in Wellfleet. "Right spot, wrong time, I guess". Lytton suffered deep lacerations on his leg and torso but was able to break free by punching the shark in the gills.
This was the second shark attack on Cape Cod this summer. Encounters with sharks are rare, but please remain alert, ' the sign said.
"It is truly unfortunate that this had to happen", Beaty said.