article_snippet: When people are strangled by somebody else, investigators sometimes find the deceased has grabbed at the ligature and left finger marks and even bits of fingernails around Thomas Martin, a veteran crime scene investigator and president of Crime Scene Forensics LLC neck, Thomas Martin, a veteran crime scene investigator and president of Crime Scene Forensics LLC said.
article_snippet: The direction of the ligature is another indicator, Martin said.
article_snippet: When people hang people, the rope often rides up directly behind the ears, Martin said.
article_snippet: When a person is hanged by other people, the ligature moves differently on the neck, Martin said.