PHOTOS: Possible suspect in double homicide seen in surveillance video

<div class="meta image-caption"><div class="origin-logo origin-image none"><span>none</span></div><span class="caption-text">Surveillance video stills show a possible suspect at a convenience store pulling a gun. (KTRK Photo/ KTRK)</span></div>
Surveillance video stills from a convenience store feed shows a possible suspect pulling a gun.
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