Today, bloodstain pattern analysis is routinely used in murder investigations - analysts draw on chemistry, mathematics and physics to determine the area of origin where an injury occurred.

Widow Gerthie Carolina was attacked in her home near the small town of Sasakwa, Oklahoma, early on Aug. 11, 1997, just four months after filling out her will and trust. She took a blow to the abdomen ...

A bloodstain on bedsheets or your favorite pair of pants can feel like a nightmare. Trust me, I've been there. Nosebleeds, ...