TODAY | October 14, 2013
>> developments in the disappearance of madeleine mccann 6 years ago. keir simmons is in london with the story. good morning to you.
>> hey, savannah. good morning, everyone. this is a case that makes you think of your own children and shutter at what happened. the thought of your 3-year-old girl just disappearing and years later not knowing what happened. well, there just aren't words. and as detectives here in london say they have new clues, the parents of madeleine mccann are clinging to hope and fighting for the truth.
>> reporter: madeleine mccann , a happy, outgoing 3-year-old full of energy. in 2007 , during a vacation, madeline vanished. but more than six years after she went missing from her family's apartment in portugal, could detectives have found evidence to track her down? to find her alive? now 10 years old. this morning there are new photos of a man seen acting strangely in the area. could he be madeline 's abductors? her parents will take to the airways to make a fresh appeal.
>> he could have gone into the apartment and taken the little girl .
>> and british television will reconstruct the day madeline disappeared to help solve the case. madeline played tennis with her mom and dad . was her abductor watching? this was one of the last pictures of her smiling. the detective leading the investigation says they have other new clues as well.
>> primarily what we sought to do from the beginning is try and take everything back to zero if you like.
>> police have access to cell phone data of who was in the area. one former detective told me there's still definitely hope.
>> are they going to find her?
>> they could. there's information there at the time that might still exist.
>> reporter: and british detectives say witnesses were left unquestioned, even while madeline 's parents were accused. they have gained strength from stories like jaycee lee dugard. they hold on to the hope that madeline is alive.
>> it's clear the investigation did lose a significant lead. it appeared that apartments weren't being searched and work wasn't being done and all these years later they're still searching . imagine how the parents feel.
>> maybe small comfort that investigators are still looking and still working hard. keir simmons in london , thank you very much.