Moore has long rap sheet Updated: 11/10/2006 1:18 PM By: Reagan Hackleman Thursday wasn't the first time Michael Keith Moore was in a courtroom. Moore, 31, pleaded â€œnot guiltyâ€ when he was charged with the murder of Rachel Cooke, 19, on Thursday. Cooke, disappeared in 2002 while jogging near her parent's home in Georgetown. Until Thursday her disappearance remained a mystery. Moore was expected to enter a plea of guilty Thursday to avoid a capital murder charge and the possibility of a death sentence. His defense team and prosecutors were surprised at his last-minute change of heart. In February, in the same courtroom, before the same judge, Moore pleaded guilty to the murder of Christina Moore, 35, in September 2003. The two Moores are not related. Mooreâ€™s rap sheet dates back to 1992 when he was 17. In 1992, he was arrested for criminal mischief. Two years later, he was arrested in Williamson County for aggravated robbery. Four years later he was arrested by Austin police for unlawfully carrying a weapon. Michael Keith Moore, charged with Rachel Cooke's murder, is no stranger to police. In 2001 and 2002 he was arrested for credit card abuse. In 2004 he was arrested twice. The first time he was unlawfully carrying a weapon. The second arrest was for the murder of Christina Moore. In February, he pleaded guilty in the Moore case and was sentenced to three concurrent life sentences. More than a year and half before Christina Moore was found murdered in her Round rock home, Cooke disappeared in Georgetown while jogging on Jan. 11, 2002. Almost four years later, Moore was charged with Cookeâ€™s murder. "There were several things that Michael told us that obviously only the person that was involved in the abduction and probable slaying of Rachel could have known," Williamson County Sheriff James Wilson said. (emphasis mine) Anyone with information in the Cooke case should call (512) 818-0494, (512) 966-6561 or (512) 818-2184.