Figure 11 lists the behavioral themes: Concerning or Threatening Communications, Interest in Violent Topics, History of Violence, Stalking, Harassing, or Bullying, Extreme Beliefs, Fixations, Behavior Changes, Desperation or Despair, and Intense Anger or Aggression.
Intense Anger or Aggression
Why inferred Figure 11 omits Inconsistency and Planning and Final Acts, which pp.69-70 describe as behavioral themes (11 in total); the figure thus shows 18 themes against the 20 stated on p.67.
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Step 5: Gather Information to Assess for Risk