Genetic genealogist CeCe Moore talks about unknown male DNA found under murder victim Maggie Murdaugh’s fingernails and how a “SNP” DNA profile of that evidence could help investigators. A “SNP” profile looks at small DNA differences between people to help identify ancestry, disease risks or physical traits. Watch this full episode of "The Truth of the Matter": youtu.be/qdLgNZexpwo #AlexMurdaugh #truecrime #MaggieMurdaugh