I call it a cowardly attack of the worst kind. Two men on a motor bike pull up imagealongside a woman on her way to work, one of them jumps off and shoots her at close range. She was defenceless and unarmed. Her crime was to be a Christian woman.

The Taleban claimed responsibility for this despicable murder, accusing her of spreading Christianity. Are they able to hang their heads in shame?

Gayle Williams, 34, leaves behind a legacy of her warm hearted generosity towards her killer’s countrymen in Afghanistan. She continued working there for the Christian organisation Serve Afghanistan, despite the death of three women by the Taleban in August who were judged to be "foreign spies". She knew she was taking risks.

The charity focuses on providing education and training for people with disabilities. Gayle had been there for two-and-a-half-years and was managing a community development project focused on disabled people. She was trying to make a difference to their lives.

How could someone as good as Gayle be considered a threat and executed in such a cold blooded way?

Cowards, cowards, cowards…