The article is typical of how the media have handled this
"revelation." In other words, lazy journalists who don't know Jack about the evidence, taking the DA's word for things.

Look at all the evidence and explain how likely it is that someone outside the family wasn't involved in some way. It's a really tough sell. There was the ransom letter...along with a rough draft of it. The killer either took the time to write it while still in the house, then killed her before fleeing. Or he killed her first, then took the time to write a meaningless ransom letter. Neither option makes any sense. But, a ransom letter makes a whole lot of sense if you're a resident of the house trying to make it look like some intruder did the deed.

Then, you are always left with John and Patsy acting guilty as hell from the first minute. Possibly they were just a cold, cold set of parents who just happened to have their daughter murdered and followed horrible PR advice. Or there was a simple reason they were acting guilty: because they were.

And, never forget the DA, Mary Lacy, has a whole lot to gain from the Ramseys being eliminated as suspects. About a year back she paid to have some total schmuck with a kiddie porn fetish flown back from the Far East just to try and pin the murder on him. When that fell apart in the first five minutes of him being back, she was left to go with her second option: finding some new evidence to clear the Ramseys.