He is cleared by much more than his mother's alibi.
This can be easily proven just by looking, for example, at ROB's testimony.
Let X be the man who ROB saw talking to GNR that night.
The GNR officers present were questioned and all said RM was definitely not there that night.
This proves that the man ROB saw that night was certainly not RM.
The GNR weren't there at 2230-2300 hrs, though, were they - around the times Wiltshire, Jenson & the nanny Charlotte Pennngton allegedly saw him.
http://www.dailymail.co.uk/news/article-504950/British-witnesses-We-saw-blond-men-balcony-Madeleine-apartment.htmlTaken from McCannfiles.com
Kate McCann DID scream 'They've taken her' claims new nanny witness Daily Mail
By DAN NEWLING
Last updated at 16:41pm on 25th September 2007
*Snip*
She confirmed reports from the McCanns' friends that Murat was at the scene.
"He was outside the lobby just before we started on our big search," she said.
"He was adamant that he wasn't there. But he was. He was there in the road, he was just looking. It was about 10.30. He was just watching.
"I didn't know his name then. But the next day he was our interpreter and I met him then. He didn't take part in the searches, but he was there."
Murat has insisted that he was at his home nearby throughout the evening of Madeleine's disappearance. Portuguese sources have claimed that he will soon be told that he is no longer a suspect.
Miss Pennington explained that she spent the rest of the evening searching for Madeleine, before finally going to bed at 4am.
The following afternoon she was one of the first people to give witness statements to the Portuguese police.
Since then, she said, she has spoken to a Portuguese detective once and to two British detectives.