David Wilson, Professor of Criminology at Birmingham City University, believes that Levi Bellfield's recent confession to the murder of Milly Dowler was currently unclear but is most likely to surround Levi's narcissism or to be used as a bargaining chip to "improve his situation in prison".
Wilson is now urging police to use Levi's confession as an opportunity to interview him on a number of other unsolved murders that have been previously linked to the killer.
"Let's get one thing absolutely clear from the get go: Levi Bellfield has not admitted his part in the rape and murder of Milly Dowler because he has developed a conscience," David Wilson told Sky News.
David Wilson is a former prison governor and an expert on serial killers and believes that from his experience, killers usually confess because it's a part of a bigger power game that they are playing. At this time, what Bellfield is trying to gain, police don't necessarily know.
"Serial killers don't become less heinous as time goes on, they don't mellow, they are simply stuck in a universe in which they see themselves at the centre of things." Wilson added.
Levi Bellfield is serving a whole-life sentence and is likely to die in prison, after joining notorious killers such as Peter Sutcliffe, the Yorkshire Ripper.
Born To Kill? | February 17th | 9pm