CNN Forensic Files January 4, 2015 07:37:00
Police suspected foul play in the disappearance of 23-year-old laura houghteling when a bloody pillow from laura's bedroom was found in the woods near her home. to find out whether the blood on the pillow belonged to laura, blood samples were taken from laura's mother, penny, and her brother, warren. using a dna test called restriction fragment link polymorphism, they determined it was the blood from a biological offspring of penny, and that of a biological sibling of laura's brother, warren. the blood on the pillow was that of laura houghteling. next, scientists used another illuminating test...
Source: archive.org