The brutal "honor killing" of a 16-year-old Afghan immigrant by her brother has sparked a renewed debate in Germany over whether Islamic families can adapt to the social ways of the Western world.

The girl, Morsal Obeidi, was ambushed in the parking lot of a Hamburg McDonald's restaurant by her 23-year-old brother Ahmad, who stabbed the girl 20 times, Spiegel Online reported. Hamburg is home to more than 20,000 Afghan immigrants, the most of any European city, the Web site reported.

Morsal Obeidi had long struggled with a tug-of-war between her desire to live like her friends in Germany, and her family’s desire to preserve their Afghan lifestyle, the site reported.

Obeidi's arguments with her brother and father, over things like her appearance, smoking and drinking, often turned physical. She reportedly sought the protection of a child and youth welfare agency to escape the violence on more than one occasion.

Ahmed reportedly told police that he killed his sister because she had become too comfortable with Western life with her uncovered hair, makeup and short skirts.

Click here to read the complete Spiegel story of Morsal Obeidi's tragic death.