Do you think that involves letting Detective Messer live when Detective Taylor does n't give him what he wants ? " At this , Gracie 's eyes were wide and worried , her hands starting to wring together slightly as Angell continued to lay things out for her . " If Hirsch kills him , and we ca n't find him ? That 's first degree murder , and not just that , he killed a cop .
According to the above context, answer the following question.
What may be the reason for Gracie wringing her hands together ?


She is nervous .