  In this paper we study the even part of the linear stability of the
Schwarzschild spacetime as a continuation of [22]. By taking the harmonic
gauge, we prove that the energy decays at a rate $\tau^{-2+}$ for the solution
of the linearized Einstein equation after subtracting its spherically symmetric
part. We further show that the spherically symmetric part converges to a linear
combination of two special solutions. One is the gauge-fixed mass change
solution [19]. The other is the deformation tensor of a stationary one form,
which solves the tensorial wave equation. As a key ingredient, we prove that
the solutions of the tensorial wave equation converge to this stationary one
form up to a scalar multiplication.
