u/Affectionate-Air9722

So today my gf was talking about a film she saw a few years ago where apparently there was a killer who is a big guy with big arms and he rips someone's arm off and beat them with it.

and also she said that she thinks the killer used a ship anchor to kill someone too. She vaguely remembers it, not sure if even it is a slasher but I thought maybe asking here would help.