Former town mayor Raj Khan, who knew Samantha Lewthwaite socially, has appealed for her to hand herself in to the authorities.
Speaking after Interpol issued a ‘red notice’ warrant for her arrest Mr Kahn, a Liberal Democrat disctrict councillor, said: “I am horrified by what has happened and I feel if she has nothing to hide she should come out.
“Why is she hiding? You cannot charge by speculation but my opinion has changed. If she has nothing to hide why is she in fear of coming forward?
“I am making an appeal to her whatever the situation, you should hand yourself to the authorities.”
Mr Kahn knew Lewthwaite during the years she lived in Aylesbury and converted to Islam.
He said: “I don’t think she had many friends.
“She sought refuge in the Muslim community. I don’t think she was socially appreciated by some from her own background.”
Mr Kahn does not know her parents but said he was very concerned about her children.
He said: “They are innocent children and their welfare is something we are concerned about.
“No one knows what has really happened, nothing is evidence based. The only thing that is evidence based is that my religion is in the spotlight unjustly.
“We as Muslims have no time for people who commit crimes in the name of faith. I condem that kind of action.”
The last time Mr Kahn saw Lewthwaite was just before the London bombings in July 2005 with her husband Jermaine Lindsay who later detonated a bomb on the Piccadilly line.
Mr Kahn said: “They were normal people, there was nothing for me to be alarmed about. I detected absolutely nothing.”
Mr Kahn said he was very concerned about his faith and the town of Aylesbury becoming linked with fanaticism.
He said: “The Muslim community has well distanced itself from these kind of people with extreme views if it is substaniated.
“We live in this town and cannot be held to ransom because of fanatics. This town should not be held accountable.
“If she has been indoctrinated we do not have people with radical views in this town.
“Nothing happened in Aylesbury that suggests she was radicalised in Aylesbury. We find people who take innocent lives away to be dispicable.”
He added: “I would plead for Samantha to give herself to the authorities. I urge her in the name of this town and our faith, don’t tarnish this faith with these kind of atrocities.”
He said if the claims being made against her are speculation she can end it all by coming forward and speaking to the authorities.