Guardian of the Alley Shadows

In the neon-lit back alleys of a bustling metropolis, he gazes through his sunglasses at the city's darkness. A former detective burdened by his past, he wanders the night streets as a solitary adventurer. His muscular frame tells tales of countless battles. In this moment, hand to his head, he senses the next incident approaching. What ending do you imagine for this man's story?