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Forensic Analysis
O'Keefe Clothing Stain and Fingernail DNA — Porto T1
Multiple stain samples collected from the front, back, and sleeves of O'Keefe's orange T-shirt and gray long-sleeve shirt, along with fingernail clippings, submitted for DNA analysis.
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Porto interpreted the grouped clothing-stain and fingernail profiles as single-contributor male DNA and reported a likelihood ratio of at least 490 octillion in support of O'Keefe's inclusion.