Derek Morgan:  Yeah , Hotch , the mother 's addicted to Oxy . She was out here to buy .
Aaron Hotchner: All right , let 's put her in protective custody .
Derek Morgan: So we got one mom suicidal , and the other _ one _ addicted to drugs . At least we got a pattern developing .
Aaron Hotchner: And if the unsub holds to pattern , he 's gon na circle back and try to kill her .