March 3, 2004, 6:33PM Convicted killer of assistant prosecutor executed Associated Press HUNTSVILLE - Convicted killer Marcus Cotton was executed this evening for the fatal shooting of a Houston-area assistant district attorney during a robbery attempt 7 1/2 years ago. "Well Mom, sometimes it works out like this," Cotton said from the death chamber gurney as his mother, who was among the witnesses, watched through a window. "When you are dealing with reality, real is not always what you want it to be." Cotton, 29, told his relatives to take care of themselves and that he loved them and his children. "Y'all are fixing to find out some deep things that are real. Bounce back, baby. You know what I'm saying. Y'all take care of yourselves," he said. As the drugs began taking effect, he gasped and sputtered. Six minutes later, at 6:13 p.m., he was pronounced dead. Cotton, 29, had been out of prison less than seven months after serving time for attempted murder when he was arrested for gunning down Gil Epstein, 27, a Fort Bend County assistant prosecutor. Epstein was shot in 1996 while leaving Houston's Jewish Community Center after playing basketball with friends. Cotton was the eighth convicted murderer to receive lethal injection this year in Texas and the first of two scheduled for consecutive nights this week. The U.S. Supreme Court last week refused to review his case, and the Texas Board of Pardons and Paroles rejected a clemency request.