User blog comment:TheUntitled1/RWBY Maid Cafe/@comment-14640999-20140607085624/@comment-3146930-20140607164534

They were tracking it, but the tracker didn't have a camera or anything, it registered location and body heat. They didn't know anything was wrong until the tracker just washed up on shore (possibly the shark carcass washed up, I only read a summary of the full story).