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An "Echo" device stands on display during the U.K. launch event for the Amazon.com Inc. Echo voice-controlled home assistant speaker in London, U.K., on Wednesday, Sept. 14, 2016. The Seattle-based company today announced that its Echo product line will be available in the U.K. and Germany starting in the fall, the first time the gadget will be available outside the U.S. Photographer: Luke MacGregor/Bloomberg via Getty Images
An "Echo" device stands on display during the U.K. launch event for the Amazon.com Inc. Echo voice-controlled home assistant speaker in London, U.K., on Wednesday, Sept. 14, 2016. The Seattle-based company today announced that its Echo product line will be available in the U.K. and Germany starting in the fall, the first time the gadget will be available outside the U.S. Photographer: Luke MacGregor/Bloomberg via Getty Images

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Was Amazon Echo a witness to killing?

James Bates is accused of strangling a co-worker at his home last year. Arkansas police say his Amazon Echo could help solve the case.

Was Amazon Echo a witness to killing?

James Bates is accused of strangling a co-worker at his home last year. Arkansas police say his Amazon Echo could help solve the case.