 That shark stayed right there and just circled. Sullivan's daughter says her mom is in stable condition. Her father was bitten too while fighting off the shark. A fourth person also grazed. It's just the latest in a string of shark encounters. Surfer Tomayo Perry killed by a shark in Hawaii and another man bitten just yesterday in New Smyrna Beach, Florida. Experts say sometimes sharks are just chasing bait fish in shallow water.