I read the following sentences in a New York Times article ( "https://www.nytimes.com/2012/12/31/nyregion/erika-menendez-suspect-in-fatal-subway-push-had-troubled-past.html"):
The case of Ms. Menendez, 31, puts renewed attention on a mental health system that is a loose amalgam of hospitals, supported housing, shelters and other advocacy and support groups, in which mentally ill people often bounce from one to the other and ultimately fall through the cracks. It is not known precisely where she fit in.
I wonder if "where she fit in” should be "where she fit" instead. "Where", as I understand, already contains the meaning of 'in the place that' or 'in situations that" so it seems redundant to add in after fit.
What is your opinion? Thanks for your help!