Mike O'Brien, a public defender, was defending a falsely accused client in a case where all the witnesses pretended not to know that the real villain, Mr. X, was behind everything. So Mike took the chance of blaming it all on Mr. X and voila! Mr. X showed up in court, testified and Mike's client was acquitted. Shortly after, his client died. Mike's "good idea at the time" to create a person out of thin air ended up also killing his client.