Last night I was watching MSNBC, and on Rita's show, some woman claimed that the DNA evidence found on the bathroom towels was semen. She had no proof to back up her claim. In her mind, DNA=Semen.
It didn't occur to her that the DNA evidence, which belonged to the two guys who lived at the house, may have come from their hands after they washed and dried them on the towels.
Another idiot woman on Nancy Grace tried to make the same point last night. She almost hyperventilated screaming "what are the odds that the semen from two males that she identified would be on a towel in the same room the poor victim was trapped in".