Paul Callan, a photography buff in Chicago, fell for Bing’s vivid background images.

芝加哥的摄影狂人保罗·卡伦（Paul Callan）爱上了必应提供的多姿多彩的背景图片。

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But that doesn't mean it sets a precedent, CNN legal analyst Paul Callan said.

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Paul Callan, a criminal defense attorney and a former prosecutor, and Jeff Gardere, a clinical and forensic psychologist, said on CNN's "American Morning" on Tuesday they have doubts that an insanity plea would stand.

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