we found five properties listing him as the owner in harrisburg, pennsylvania. when we began looking at these properties, we were able to determine that three of those properties were vacant at the time of the murder. the property that needed the most work was on south 13th street in downtown harrisburg. records showed it had been built in the 1930s, around the same time builders used animal hair plaster like the kind found with wesley person s body. we re hoping for slugs, we re hoping for bullet holes in the walls. we re hoping for anything we could get. we were unsuccessful. investigators sprayed luminol in the basement of lawrence murrell s construction property on south 13th street and ran into an unexpected problem. as we re looking at that, crime lab techs are explaining to me that in harrisburg, their soil s iron rich and iron in itself will give false positives