I understand the need to ask for help in such extreme cases, but their checklist is about useless.
Unexplained injuries or absences does make sense though.
People who have suddenly left the area, missed work, suffered unexplained injuries or changed their appearance — by shaving or growing head or facial hair, for example — should arouse suspicion, Beseler said. He also encouraged people in the community to identify anyone who has abruptly hidden or sold a car, acted increasingly nervous or irritable, shown unusual interest in the case or altered his or her alcohol consumption or sleep patterns.