The police detective who led the Milly Dowler murder investigation said that he believes her killer Levi Bellfield confessed in hopes to get parole in the future.
Former Detective Chief Inspector Colin Sutton said that he's convinced that the West Drayton man has an "ulterior motive" for his confession.
Sutton told Good Morning Britain on Thursday (January 28): "Well at the moment he can never apply for parole, for a whole-life tariff he’s got, but there was a move a year or so ago to take the idea of whole-life tariffs to the European Court of Human Rights.
"That failed, but it might succeed in the future.
"It wouldn’t surprise me if what he is doing is preparing the ground, hoping that at some point, two years, five years, 10 years, the law changes and he is able to apply for parole, and of course a pre-condition of that would be that he accepts responsibility for what he has done.
“I never thought Levi Bellfield would admit to anything and the cynic in me says there’s a reason. He does everything for reason."
He added: later said: "I was shocked because I never expected Levi Bellfield to confess to anything. Not in his nature, I thought, which makes me wonder if there is some ulterior motive.
"I’m a bit cynical about his motivation for doing this. I hope he wants to clear the slate, I hope he’ll show remorse about everything that he has done."
The news comes as police have revealed they will launch a string of new investigations into murders across the country that could possibly be linked to the murderer.
Levi Bellfield admitted on Wednesday (January 27) that he did rape and kill 13-year-old Milly in 2002 and also confessed to other attacks.
The former bouncer from West Drayton has spent 14 years denying the murder of Milly Dowler, despite being convicted of it in 2011 and serving five years of his prison sentence.
After the announcement of Bellfield's confession, a spokesman for Dowler's family said: “The effect of this information has been devastating for a family which has already had to endure so much.”
Death of Milly Dowler
March 21, 2002 - Milly goes missing
Amanda Dowler, 13, goes missing at around 4pm after leaving Walton train station
March 2002 - Investigation launched
A search for Milly takes place in the surrounding area, involving 50 police officers and specialist dog teams
May 2002 - Police search rivers
Dive teams search the rivers Thames, Mole and Wey, as Milly's parents describe living through her disappearance as "a living hell"
August 2002 - False claims
Police claim unreliable witnesses have made the case "extremely difficult" as officers say they have "not lost hope of finding her"
September 18, 2002 - Milly's body found
Milly's remains are found in Yateley Heath woods in Hampshire by mushroom pickers
October 2002 - Milly's Fund
A memorial service is held at Guildford Cathedral and Milly’s Fund is launched to raise awareness of safety among children
March 2003 - £50k reward
Milly's funeral is held in Walton and police offer a £50,000 reward for information relating to the murder
March 2005 - Levi Bellfield arrested
Levi Bellfield was arrested on suspicion of killing Milly while awaiting trial for the murders of Amelia Delgrange and Marsha McDonnell and the attempted murder of Kate Sheedy
February 2008 - Prime suspect
Levi Bellfield is identified as a prime suspect in Milly's murder and found guilty of the other charges.
August 2009 - Evidence given to CPS
Surrey Police submit a dossier of evidence to the Crown Prosecution Service against prime suspect Levi Bellfield
March 2010 - Bellfield charged
Levi Bellfield is charged with Milly Dowler's kidnap and murder, and the attempted kidnap of Rachel Cowles the day before
May 2011 - Trial of Bellfield
The trial starts in the case of Levi Bellfield at the Old Bailey as court hears Milly was "gone in the blink of an eye"
June 24, 2011 - Life sentence
Bellfield found guilty of the kidnap and murder of Milly Dowler and handed life sentence
July-Aug 2011 - Phone hacking
February 2012 - Bellfield loses appeal
Killer Bellfield loses a bid to challenge his convictions for the kidnap and murder of Milly
July-Oct 2012 - Journalists charged
June 2014 - Milly's sister speaks out
In a video message to David Cameron, Gemma Dowler calls for press action after the Leveson Inquiry
January 2016 - Bellfield admits murder
Levi Bellfield confesses for the first time to "abduction, rape and murder" of Milly Dowler
February 2016 - Details of sick confession
Dowler family statement reveals full horror of how Bellfield repeatedly raped and then strangled the teenager