Riaan 
Emashumini eminyaka ngemuva kokutholakala kwesidumbu esonakele endaweni enehlathi enyakatho ye-Alabama, izikhulu zikhombe isisulu esinamakhaza njengendoda yaseCalifornia ngobuchwepheshe be-DNA kanye nozalo.
Isidumbu, esatholwa ngo-April 15, 1997, e-Union Grove, Ala., satholwa ngasemfudlaneni, sikhishiwe ikhanda, izinyawo nezandla, kanye nezinye izingxenye zomzimba zicwiywe, ngokusobala bezama ukuhlonza amaphoyisa. nzima, ngokusho a ukukhishwa kwezindaba kuleli sonto kusuka eHhovisi likaSheriff wesifunda sase-Alabama.
Imizamo enyantisayo yombulali noma ababulali bendoda yabonakala isebenza; iminyaka eminingi, imizamo yabaseshi benkantolo yokuhlonza le ndoda ayizange iphumelele.
Kodwa ngo-2019, izikhulu zahlangana nenkampani yobuchwepheshe be-DNA eyakwazi ukuthuthuka kancane kancane kuleli cala, yaqala yathuthukisa futhi yacacisa amasampula e-DNA emzimbeni bese iqhathanisa leyo phrofayili nezinye kumininingwane yofuzo – ekugcineni iholele ithimba ukuthi lihlonze. owesilisa njengoJeffrey Douglas Kimzey oneminyaka engu-20 waseSanta Barbara.
“Lokho kwasiholela kubazali baseSanta Barbara,” kusho uWillie Orr, iphini eliyinhloko leHhovisi likaSheriff likaMarshall County, ephawula ukuthi abaphenyi bakwazile ukuqinisekisa lokho okutholakele ngokuhlolwa kwe-DNA. “Babengazi ukuthi ukuphi.”
U-Orr uthe umndeni ubungazi ukuthi uKimzey ushonile. I-Times ayikwazanga ukufinyelela ngokushesha noma imaphi amalungu omndeni kaKimzey.
Eminyakeni yamuva nje, izikhungo zomthetho ziye zasebenzisa kakhulu ubufakazi be-DNA obusuka kumininingwane yofuzo ukusiza uphenyo lobugebengu, iqhinga abanye abagxeki abathi liyindlela engalawulwa kahle engase ibe ukuhlasela kwemfihlo, kodwa abanye abaye balimemezela ngokuthola abasolwa abangatholakali, kuhlanganise iGolden State Killer ngo-2018.
Ososayensi abane I-Parabon NanoLabs, inkampani yobuchwepheshe be-DNA ezinze eVirginia, ikwazile ukunqoba ukucekelwa phansi kwe-DNA kanye nokungcoliswa kwamagciwane okwenzeka eminyakeni engu-26 edlule ukuze yakhe iphrofayili yofuzo ka-Kimzey, efana nalokho okusetshenziswa kusizindalwazi sokuhlola izakhi zofuzo, njenge 23 kanye nami, kusho uCeCe Moore, oyisikhulu solibofuzo lweParabon NanoLab. Uthe isinyathelo esilandelayo ukuhlola uhlobo lwezimpawu zofuzo, noma i-single-nucleotide polymorphisms, eyaziwa ngokuthi ama-SNP, ukuze kubhekwe izihlobo ezingase zibe khona kuma-database atholakalayo.
“Ngofuzo lozalo nokuhlolwa kwe-SNP, singathola abazala besibili, besithathu, besine nangale kwalokho, futhi singasebenzisa lolo lwazi ukuze sihlehlise ubunikazi bothile bonjiniyela,” kusho uMoore.
Kodwa-ke, ukuqhathanisa kwabo kukhawulelwe kumaphrofayili atholakala kudathabhethi yofuzo emibili emincane – I-Family Tree DNA futhi GEDmatch – okuvumela ukufinyelela ekuphenyweni kwabomthetho, kusho uMoore, ngokungafani nezinye izinkampani ezinkulu, njenge-23andMe noma i-Ancestry.com ekhawulela ukwabelana ngedatha.
Kusukela kumininingwane etholakalayo, ithimba likaParabon likwazile ukuhlonza izihlobo ezimbalwa ezikude ku-DNA yomzimba, kodwa ngenxa yokuthi bekungewona amameshi aqinile, kuthathe izinyanga ukuthi kungabi bikho ukuthi ungubani, kusho uMoore. Ithimba liphinde lasebenzisa i-DNA phenotyping ukuze lizame ukuveza izici zomzimba zesisulu, izikhulu zendawo ngaleso sikhathi ezazizidedele emphakathini. Kodwa u-Orr uthe lo mfanekiso awuzange ukhiqize umkhondo.
“Kungathatha isikhathi eside kakhulu,” kusho uMoore. “Kuncike ngokuphelele ekutheni ubani ofake i-DNA yakhe kuleyo mininingwane.”
Ngemva kokuthola izihlobo ezengeziwe nokuqhathanisa lokho nemibhalo yomlando, ithimba likwazile ukuthola ukuthi ungubani isidumbu “ngokuzethemba okukhulu,” kusho uMoore, owabelana ngokutholakele neHhovisi likaSheriff we-Marshall County. Amasekela abe esekwazi ukuthola ilungu lomndeni wakwaKimzey eTennessee, kusho u-Orr, ohole abaphenyi kubazali bakaKimzey eSanta Barbara, lapho kwaqinisekiswa khona ukuthi ungubani.
U-Orr uthe akucaci ukuthi kungani uKimzey wayesenyakatho ye-Alabama ngesikhathi eshona ngo-1997, kodwa wathi abaphenyi bakholelwa ukuthi kungenzeka ukuthi wayedlula. Ukufa kuthathwe njengekubulala.
U-Orr wenqabile ukuphendula eminye imibuzo mayelana nezimo zecala, kodwa wathi “lisaqhuba,” nobunye ubufakazi be-DNA obuvela endaweni yesigameko obuhlolwa nguParabon.
“Sifuna ukumemezela ukuthi sinabo abantu abanentshisekelo abathintekayo kuleli cala futhi sibalandela ngenkuthalo labo baholi,” kusho izikhulu zikasheriff esitatimendeni.
