  In our earlier paper, based on a paper by Bump and Ginzburg, we used an
Eisenstein series on the double cover of GL(r) to obtain an integral
representation of the twisted symmetric square L-function of GL(r). Using that,
we showed that the (incomplete) twisted symmetric square L-function of GL(r) is
holomorphic for Re(s) > 1. In this paper, we will determine the possible poles
of this Eisenstein series more precisely and show that the (incomplete) twisted
symmetric square L-function is entire except possible simple poles at s = 0 and
s = 1.
