were killed and relatives of the victims said they believe some lives could have been saved had officers acted sooner. meanwhile, tourists on cape cod are being warned sharks are in the water. holy smokes. that thing is huge, dude. that s like 15 feet. this incredible video coming to us from billingsgate charters and captain dave stamattis, from off of cape cod. multiple great white sharks have been spotted there, and researchers from atlantic white shark conservancy warned they will be a constant presence on the east coast from now until the fall. earlier today, i spoke to jeff corwin, host of the new show wildlife nation with jeff corwin. here s what he had to say. i ve had a number of times getting ready to go into the water where a shark has been right in that location. i ve marked sharks and i ve seen them in the water. i actually have an app that i can follow sharks.