Everything I've ever learned about Nessi doesn't say anything about it attacking people. If this Ogopogo thing is anything like it, and by the photo's the neck and head are around the same width, it probably just eats fish.

[He seems unamused. This is the second person the network that's tried to get him to turn his attention over his shoulder. He's not falling for it again. His Ogopogo-familiar could be super obvious and be wearing a top-hat behind him for all he knows. Gokudera shakes his head.]

As if I'd fall for something like th-

[And he's being tugged under by something, and the camera could capture something, but it's too murky to see through the water.]