New "Confession" in Natalee Holloway Case

(CBS)- Natalee Holloway vanished nearly five years ago. The mystery behind her disappearance has never been solved, but the primary suspect in the case is talking again, reports CBS News Correspondent Kelly Cobiella.

For the second time in roughly two years, Joran Van Der Sloot is claiming he disposed of Holloway's body.

In 2007, he said he'd dumped her body at sea.

But, in a statement captured on camera last year by a reality star friend in the Netherlands, the Dutch suspect claims to have dumped the Alabama teen's body in a marsh in Aruba.

Holloway went missing after a night of partying on the Caribbean island in May 2005 during a high school graduation trip. The case received international media attention, much of it generated by Holloway's mother, Beth Twitty, in her unrelenting drive to find her daughter.

Van der Sloot's recent statement provides details similar to his 2007 "admission," which came during an undercover operation by a Dutch crime reporter.

Prosecutors in Aruba say they launched an investigation after learning in of this new confession in August 2009, but tell CBS News they concluded "what Van der Sloot said was not credible." They also told a Dutch TV station, "It became clear that this statement is held together by lies and fantasy."

Van der Sloot's father died suddenly on a tennis court two weeks ago, at 57. Many believe Paulus van der Sloot was instrumental in covering up for his son.

On "The Early Show" Tuesday, legal analyst Jack Ford expalined that, "Most people would think, if somebody comes in and says, 'Yes, I did this, and here's where we got rid of the body,' they would think, 'Isn't that enough to prosecute somebody?'

"(In) most places," Ford told co-anchor Maggie Rodriguez, "you need more than somebody just saying, 'I did something wrong. Here's what I did.' The law says you have to be able to prove that there was a crime to start with before you can use somebody's words as a basis for a prosecution. So you need to have more evidence out there."

Ford added, "If you're the prosecutor here, the first time he's talking about, 'We disposed of the body in the ocean.' Now, he's saying, 'We disposed of the body in a swamp.' So, the prosecutors, I'm sure, are looking at this, and they're saying, 'There's just not enough detail here, and the detail he is giving us is different from what he said the first time.' So, again, if they had something else, if they had proof of a murder, something that could tie him into it, then this might be more significant. But apparently they just don't."