For all of his violence, the man was not in his right mind, and all signs point toward him not being able to recover.
After he and Bruce got the crazed man down, Alfred began beating him over and over again with his flashlight, and Bruce had to pull him off.
Irreparable damage was done to his brain.
Alfred spent most of the episode dealing with guilt for being hypnotized by The Mad Hatter as part of Jeremiah’s scheme, and he believed it was his fault that he wasn’t able to fight back and stop Wayne Manor from being destroyed.