Sherlock Bones and the case of the first degree fisher

I'm Sherlock bones (A.K.A. Dug) and I'm working on a case that involves Pet Newsroom's very own Brock the fish and I found out that his bro has disappeared because of a FISHER!!!! I've got all the suspects lined up,Rhino the snapping turtle (a very hungry and fashionable turtle),whittney the cat(knows alot of people and was last seen puking up a fish scale in her last hairball), and Salty Joe( a pro fisher). I've even got some the evidence, a purple twisty tailed bait, a scale and some fishing boots.I'll be back to tell you the answer.