Federal prosecutors seeking a man’s conviction on charges of planting a pipe bomb at the Hinsdale Metra station got the go-ahead to introduce evidence about a similar crime committed in Salt Lake City.In a written opinion last week, U.S. District Judge Robert M. Dow Jr. acknowledged Federal Rule of Evidence 404(b)(1) states that evidence of a crime other than the one charged “is not admissible to prove a person’s character in order to show that on a particular occasion the person acted in accordance with …