but at the time, dna testing was still in its infancy. in 1986, we weren t even online. our state was not doing dna testing. although it was beginning to be done in other places, there were only a few select laboratories that did it, and it was a very, very expensive process. but by the time nancy ludwig was murdered, dna testing was routine. and to the surprise of investigators, dna testing proved what margarette eby s son knew instinctively, that the same man killed both women. i thought we had our case solved. and he said, well, the good news is we ve matched your case. the bad news, we still don t can t give you a suspect. the dna profile of their killer did not match any of the known criminal offenders in the national database. the dna match didn t tell us who that person was.