Mrs. Kintner, depicted in the film Jaws by Lee Fierro, is the mother of Alex Kintner, who was the boy that was attacked and killed by the shark off the beaches of Amity, on Martha's Vineyard.
Mrs. Kintner witnesses the brutal death of her son Alex after he was killed by a shark. She later slaps Martin Brody and tells him about the girl (Chrissie Watkins) who got killed, and that he knew about it. She also blamed Brody for allowing people to go swimming when it was dangerous. She then adds, "Now my son is dead. I just thought you wanted to know."
This is the last appearance of Mrs. Kintner in the film.