Terrifying last seconds of 77-year-old grandma swallowed by shark big as a helicopter
Tyna Webb, 77, was swimming peacefully when a massive great white shark began circling her. Suddenly, the predator struck — in full view of stunned beachgoers. When the shark was done, all that was left was her bright red bathing cap. A routine for 17 years Shark attacks on humans are extremely rare. In the…