“... his DNA was found on a KA-BAR knife sheath found next to the bodies of Kaylee and Madison.”
Which is apparently such weak-sauce evidence that the prosecution doesn’t intend to use it at trial they have claimed in later court documents.
Wondering why a criminology student wouldn’t have kept the sheath attached to a belt, so as to not leave it behind if he had to make a hasty exit - which it seems the murderer did when he heard noises downstairs. Dispose of the evidence. Then again, he was friendly with the girls a little bit so he could argue the sheath belonged to one of the boyfriends or something... I’m sure they have more evidence than that, though.
My wife watches all the murder shows, forensic files, cold case... sometimes I wonder if she isn’t plotting my demise.
There was a serial rapist who was pretty good at covering his tracks. Kept his single female victims hostage in their apartments, then made sure they bathed completely to remove DNA evidence and hairs, clipped their nails etc, and took the bed sheets and pillows with him when he left. Can’t remember if they ever caught him.
Some of the criminals of the past got away because there was a lack of forensics. Much harder to get away with any crime these days unless the police and DA let you.