  The ATLAS collaboration has recently reported an excess of about 2.5 $\sigma$
global significance at around 2 TeV in the diboson channel with the
boson-tagged fat dijets, which may imply a new resonance beyond the standard
model. We provide a possible explanation of the excess as the isospin-triplet
technivector mesons (technirhos, denoted as $\rho_\Pi^{\pm,3}$) of the walking
technicolor in the case of the one-family model as a benchmark. As the
effective theory for the walking technicolor at the scales relevant to the LHC
experiment, we take a scale-invariant version of the hidden local symmetry
model so constructed as to accommodate technipions, technivector mesons, and
the technidilaton in such a way that the model respects spontaneously broken
chiral and scale symmetries of the underlying walking technicolor. In
particular, the technidilaton, a (pseudo) Nambu-Goldstone boson of the
(approximate) scale symmetry predicted in the walking technicolor, has been
shown to be successfully identified with the 125 GeV Higgs. Currently available
LHC limits on those technihadrons are used to fix the couplings of technivector
mesons to the standard-model fermions and weak gauge bosons. We find that the
technirho's are mainly produced through the Drell-Yan process and predominantly
decay to the dibosons, which accounts for the currently reported excess at
around 2 TeV. The consistency with the electroweak precision test and other
possible discovery channels of the 2 TeV technirhos are also addressed.
