Julianna Grna, 85, and her 43-year-old son were bludgeoned to death in their Akron home in July 2009. But police were left with no fingerprints, no eyewitnesses and no murder weapon. Read more: http://www.newsnet5.com/dpp/news/lo...-Akron-murder-of-mother-and-son#ixzz1v3dkW3D3 A tiny little clue. Seeing bits of toilet paper on the floor leads a forensic investigator to the toilet paper and the evidence that convicted the murderer. Benefits of touch DNA.