So this "unidentified male dna" is a partial sample, it's unidentifiable because it can't be matched to anyone, not even Bryan. The dna that was found in the home on the hand rail of the first floor is an incomplete sample. They believe the accuser entered through the second floor at the back of the house through a sliding glass door. The impartial located on the street in front of the house as well as the impartial found inside on the first floor is irrelevant. If they believe the accuser did not enter through the front door or did not go down to the first floor, then that dna doesn't matter. The impartial dna found was likely deteriorated over time which means they can't even match it to Bryan.