FILE - In this Nov. 3, 2017, file photo, Scott Ostrem, 47, center, is escorted out of the courtroom after a hearing in Brighton, Colo. Ostrem, who pleaded guilty to gunning down three people in a suburban Denver Walmart last year, will be sentenced Friday, Oct. 19, 2018, but more than 11 months after the crime, his motive remains a mystery. (AP Photo/David Zalubowski, Pool, File)
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