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Commonwealth v. Read— Trial Archive
evidenceevidencephysicalRetrialDNA Stain Samples from O'Keefe's Shirts (Items 7-17 & 7-18 Series)Porto interpreted 13 selected shirt stains as single-contributor profiles supporting O'Keefe. Separate gray-shirt results included mixtures and three profiles unsuitable for comparison.
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Physical Evidence

DNA Stain Samples from O'Keefe's Shirts (Items 7-17 & 7-18 Series)

Porto interpreted 13 selected shirt stains as single-contributor profiles supporting O'Keefe. Separate gray-shirt results included mixtures and three profiles unsuitable for comparison.

2 proceedings2 mentions1 trial

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Porto testified that about 13 DNA profiles from stains on O'Keefe's orange T-shirt and gray long-sleeve shirt were interpreted as originating from a single contributor. In separate testimony, he interpreted stain L and an unstained shirt exterior sample as involving two contributors and said he did not know who the other contributor was; the record does not support treating all shirt-related samples as single-source or free of unknown contributors.

Porto analyzed a selected group of five stains from O'Keefe's orange T-shirt and eight stains from his gray long-sleeve shirt; he interpreted those 13 profiles as single-contributor profiles that supported O'Keefe's inclusion. He separately reported a single-contributor result for gray-shirt stain C, two-contributor mixtures for gray-shirt stain L and an unstained exterior sample, and three additional gray-shirt profiles that were not suitable for comparison.

Trial Record (2)