He is a 'madman' out on the ski slopes. [=he is an extremely daring or reckless skier]
He drives 'like a madman'. [=he drives very recklessly]
a celebrity being stalked by a 'madman'
(..) "then took the blame for Harvey's appalling crimes" "so that I could, to my shame," "build a lie around this fallen idol." "I praised the madman who tried to murder my own child." "Well, I can no longer live with my lie." "It is time to trust the people of Gotham with the truth..." (..)2012 The Dark Knight Rises