They have the gun then they have the DNA. Images were captured of the person storing the gun in their clothing down into their pant legs while walking to the event. Sweat, skin, or even a bit of blood from rubbing is on the weapon and likely being processed. It could be they don’t have a DNA match in their database because this person hasn’t been arrested before. They want tips to strengthen the evidence but likely know it’s this person.

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Fingerprints and touch DNA.

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