IMO,this cat appears to have lost its fear of humans, which makes it dangerous. Because it's already fed there, it will be back, and is probably smart enough to avoid traps. A dog may be effective, or it may get dead. More than one dog has been killed by a treed cat. Multiple dogs would stand a better chance with it. Before I invested in a single dog, I'd try to find a big cat hunter with a pack of trained cat hounds. They could pick up the cat's trail & possibly run it down.
I agree with this. I don't trust the big cats when they are comfortable enough coming around houses again and again. The cat needs to be shot.