Casey McManus is a former Deadliest Catch star who has left the show. He brought his dog, Squirt, on the Cornelia Marie with him, who passed away before Discovery decided not to renew boat contracts. Deadliest Catch long-time fans remember when Casey and Josh rode the Cornelia Marie together. They haven’t been brought back to the Discovery Channel show after Casey’s dog, Squirt, passed away. In honor of National Dog Day, we bring you Captain Casey and his dog Squirt. Lets see your dogs! Post pics in the comments. #nationaldogday #DeadliestCatch #CorneliaMarie Posted by Deadliest Catch – F/V Co…