JMO.
Thank you for the link. It is sad the article was written six months after the murders and police say they are getting close to identifying the killer. Obviously, that didn't happen.
I want to emphasize again the syntax and semantics of what the police actually said about the perp's DNA.
".... Indiana State Police says they not only have more audio of the killer’s voice, recovered from Libby’s cell phone,
but also DNA evidence that they believe belongs to the killer." BBM
The key words here are "....
that they believe...."
Anytime a person inserts "
I believe" or "
To the best of my knowledge," "
I think" and similar phrases, those are called
qualifiers. Qualifiers basically reduce the veracity of the statement to which they are attached. It can even be indicative of non-confidence in what is being said or, in the case of sociopaths, an actual lie.
Linguistic analysts and statement profilers know to look for these types of qualifiers.
Another phrase that is frequently used by people who are lying is "I know in my heart I didn't" [murder, rape, kill, rob] the victim.
I know in my heart is not the same as I know I didn't do it.
Language is powerful. Language can be used to deny, deflect and disassemble, all while pretending to answer a question or give information.
Because of the language used, I am still not confident LE has the Delphi murderer's DNA. I know they want the perp to think they have it. I sincerely hope they do.