Try to catch his blackmailer

Bart did as he planned before: He searched for a place where the blackmailer couldn't see him, and he found it: an alley near the park. He jumps into the alley, and he looks from there to the park: first, he didn't see anyone coming. Now Bart wonders if he made the wrong choice. Maybe now the blackmailer, knwoing about what he tried to do, published the photos online, and now everyone in Springfield is looking at them, and laughing of him. Bart started to regret about his decision, when he hard someone walking to where he's.

Whatever the person is, its too close now, maybe its the blackmailer who finally lurks out of his/her hiding place, and Bart could catch him or her, but maybe isn't the blackmailer, and Bart catch another person. He could get in serious trouble if the person that he attacks isn't the blackmailer, more if there is an authority figure, like Chief Wiggum. But he had to make a choice, so he decided to...