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Familial DNA match

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http://tdcaa.infopop.net/eve/forums/a/tpc/f/5340985611/m/5697025516

July 14, 2016, 08:46
Paul Dyer
Familial DNA match
Cold Case Homicide Investigators got a familial DNA match on a subject just released from prison and this subject has a son who had connections to the homicide victim. We do not have a DNA sample for the son who now lives in San Antonio so we are unable to do surveillance in order to obtain a sample. Does anyone know of a case where familial DNA was used to get a search warrant and if so what additional factors were needed to obtain the warrant?
July 14, 2016, 09:59
Paul Dyer
So my initial information was not correct, the suspect ran with the same crowd as the victim but we have no direct link between the two.