Local News Craigslist Killer Evidence Released March 31, 2011 / 2:24 PM EDT / CBS News Philip Markoff at his arraignment. (Photo by Mark Garfinkel-Pool/Getty Images) Markoff's Alleged Gun Authorities allegedly found this gun in a hollowed-out Gray's Anatomy book. (Photo by Kate Merrill) Markoff's alleged gun Authorities allegedly found this gun in a hollowed-out Gray's Anatomy book. (Photo by Bernice Corpuz) Markoff's Alleged Gun Authorities allegedly found this gun in a hollowed-out Gray's Anatomy book. (Photo by Bernice Corpuz) Craigslist Evidence The Gray's Anatomy textbook investigators say was used to hide the murder weapon. (Photo by Bernice Corpuz) Markoff's Phones Markoff allegedly purchased several pre-paid phones. (Photo by Bernice Corpuz) Markoff's IDs Markoff had several IDs he used during his alleged crime spree. (Photo by Bernice Corpuz) Photo Board of Evidence The DA displayed a photo board showing the evidence collected, as well as Markoff's booking photos. (Photo by Chris Gobeille) Photo Board The DA displayed a photo board showing the evidence collected, as well as Markoff's booking photos. (Photo by Bernice Corpuz) Boxes of evidence The DA claims he had a strong case against Markoff. (Photo by Bernice Corpuz) Files (Photo by Bernice Corpuz) Photo Board of Evidence The DA displayed a photo board detailing the evidence against Markoff. (Photo by Bernice Corpuz) Evidence in the case against Markoff Authorities accumulated a large amount of evidence, including several ID's and a hollowed-out textbook. (Photo by Kate Merrill) Suffolk DA Dan Conley DA Dan Conley presents the evidence in the case against Markoff. (Photo by Bernice Corpuz) The DA's Presentation The DA explains using PowerPoint slides how Markoff attained his gun license. (Photo by Bernice Corpuz)