  We explore possible signatures for heavy neutrinos and neutral gauge boson,
Z', in TeV scale B-L extension of the Standard Model (BLSM) with inverse seesaw
mechanisms at the Large Hadron Collider. We show that due to new decay channels
of Z' into heavy/inert neutrinos, the LHC stringent bounds imposed on Z' mass
can be significantly relaxed. We analyze the pair production of heavy neutrinos
decaying to four leptons plus two neutrinos, four jets plus two leptons, or
three leptons plus two jets and one neutrino. We show that the 4l + 2 nu is the
most promising decay channel for probing both Z' and heavy neutrinos at the
LHC.
