The Kilpatrick and Beatty text-messaging scandal was a political-sex scandal emerging from a whistle blower lawsuit involving former Detroit Police Chief Gary Brown, Detroit Mayor Kwame Kilpatrick and his former Chief of Staff and paramour Christine Beatty.

Can we draw the following conclusion?
More people than listed were involved.

Select from: (I) Yes. (II) It's impossible to say. (III) No.
(II)