Create a haunting portrait of the Boston Strangler standing in a dark alleyway, with flickering streetlights casting dim, eerie lighting on his face. Use the style of expressionism or surrealism to add an unsettling feeling to the piece. Use a monochrome color scheme with dark tones to add to the overall mood. The portrait should be high definition and realistic, either in oil on canvas or charcoal drawing., professional ominous concept art, by artgerm and greg rutkowski, an intricate, elegant, highly detailed digital painting, concept art, smooth, sharp focus, illustration, in the style of simon stalenhag, wayne barlowe, and igor kieryluk.
Disfigured, kitsch, ugly, oversaturated, grain, 
low-res, deformed, blurry, bad anatomy, disfigured,  
poorly drawn face, mutation, mutated, extra limb, ugly, 
poorly drawn hands, missing limb, blurry, floating limbs, 
disconnected limbs, malformed hands, blur, out of focus, 
long neck, long body, disgusting, ugly, poorly drawn, childish, 
mutilated, mangled, old, surreal.