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Posted on January 26, 2014 at 11:58 AM
Updated Sunday, Jan 26 at 8:59 PM
The shooting baffled investigators and acquaintances of 19-year-old Darion Aguilar, a quiet, skinny teenager who graduated from high school less than a year ago and had no previous run-ins with law enforcement.
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Credit: Katrina Gutierrez / WFAA