LONDON -- The girl was murdered by her Pakistani parents for her Western ways. And it was her little sister who bravely told jurors how her mother and father suffocated the 17-year-old with a plastic bag -- gripping testimony that led to her parents' murder conviction Friday.

Justice Roderick Evans sentenced Iftikhar, 52, and Farzana Ahmed, 49, to life in prison for killing their daughter, Shafilea, in 2003. The couple were ordered to serve a minimum of 25 years in prison.

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"She was being squeezed between two cultures -- the culture and way of life that she saw around her and wanted to embrace, and the culture and way of life you wanted to impose on her," Evans said during the sentencing.

In Britain, more than 25 women have been killed in so-called "honor killings" in the past decade. Families have sometimes lashed out at their children on the belief that they have brought their household shame by becoming too westernized or by refusing a marriage. -- AP