we failed brenda schaeffer's family. e felt what we felt was right at the time. >> do you owe the schaeffer family an apology? >> we're sorry because, you know, any family would be devastated, but we made a decision on the evidence that was given to us and that i just don't feel that we should be blamed. >> as shocking as the murder was, the people of louisville had yet another shock to come. in this country there's a constitutional protection from double jeopardy that is once you've been acquitted of a crime you cannot be retried even if new evidence, no matter how compelling surfaces. it was designed to protect services from an overzealous government, but what it means in this case is ignato will never spend a day in jail for the murder of brenda schaeffer. >> and you're sick to your stomach that you can't get justice in the case. >> why not give the government a second bite from the apple if, in fact, evidence like this is found after the fact. >> you'd have prosecutors prosecuting people again and again and again and