As a contract killer, your job involves using initial clues to ascertain your target, as well as finishing them off (usually from a rooftop, just like the movies). (t3.com)
Finally, data indicate that children with FASDs who have attention problems may not respond to stimulant medications, which often serves as an initial clue that an FASD should be considered. (aap.org)
Some of the initial clues point to extremism being connected to increased anxiety, but that is certainly not an all - explanatory premise. (blog.politics.ox.ac.uk)