Joran van der Sloot's lawyer Maximo Altez Navarro has exclusively told Breaking Celebrity News: "I'm confident that we can win our temporary insanity plea."

The Peruvian lawyer pulled out a legal 'wild card' in van der Sloot's complex murder case when he revealed his client will plead guilty to killing 21-year-old Stephany Flores but will use the "violent emotion" defense and argue temporary insanity.

Navarro hopes to get van der Sloot's sentence dramatically slashed if he can prove that his client killed Flores because she had learned of his ties to missing American teenager Natalee Holloway by looking in his laptop computer.

Van der Sloot remains the key suspect in the 2005 disappearance of Holloway on the Caribbean island of Aruba.

But if Navarro's plan doesn't work then the 24-year-old Dutchman could face spending the rest of his life behind bars.

Navarro said: "We are confident that we can prove 'temporary insanity' and I am going to fight to make this happen for Joran.

"If we are successful, he will serve between 3-5 years in prison but will get out earlier if there are no problems.

"Both Joran and his mother agree with my plan, and we believe this is the best option for him.

"I believe that we can persuade the judge about our plea and I'm hopeful that we can get a fair