statement that the body was moved. so let's say that that happened. could they still find traces of that little boy 33 years later in this basement? >> that's a very good question. if a body is put into a grave site and then moved months or weeks later, any bacteria -- not bacteria, maggots, insects that are on the body which would stay in the -- in that hole and still be there after 33 years dead will contain d.n.a. of the person they were on. so that it is possible even if a body is moved from a grave site to find remnants of the individual with the d.n.a. of the individual and the insects. >> finally 33 years have passed. how has technology improved in the last three decades to help police and investigators and yourself solve crimes like this? >> the most important thing that's happened is that because