Michael John Anderson

Michael John Anderson was convicted on all counts, including first-degree murder of Katherine Ann Olson. The Minnesota jury convicted Anderson on April 1, 2009 and he was sentenced to life in prison.WSJ: A Life Sentence for Craigslist Killer (April 2, 2009)

Anderson referred to himself as "the Craigslist murderer" while incarcerated, but in April 2009, a new Craigslist Killer made headlines.WSJ: A Life Sentence for Craigslist Killer (April 2, 2009)On April 20, 2009, Phillip H. Markoff was arrested and charged with the murder of Julissa Brisman, whom he met through an ad on CraigslistABC News: Gun Tie to Craigslist Suspect (April 24, 2009)

Michael John Anderson was charged with the murder of Katherine Ann Olson in what the media dubbed the Craigslist Murder. On Thursday, October 25, 2007, Olson was found dead in the trunk of her car. A few days earlier Olson responded to an ad on Craigslist looking for a nanny. Anderson, the 19-year-old man who placed the ad, was accused of shooting her in the back at his home.The Associated Press: Minn. man convicted of luring victim on Craigslist (April 1, 2009)

• CBS News: Nanny Who Answered Online Ad Found Dead (October 29, 2007)