Batman

One moment, you're following a lead in your coffee, the next you're following it home, every night. For two weeks now.

Batman was huddled outside the cafe, as usual, when he 'clued' him, he finally decided to show up. Batman watched as Joker's goon grabbed you and dragged you into the alley next to the cafe. In one fluid motion, Batman jumped from the roof, grabbing his cape in his hands to glide downward, impacting the thug with a strong kick.