  ATLAS recently reported a $3\sigma$ excess in a leptonic-$Z+E_T^{\rm miss}$
channel. This was interpreted in the literature in a simplified General Gauge
Mediation model containing a gluino, a higgsino next-to-lightest supersymmetric
particle (NLSP) and a gravitino lightest supersymmetric particle (LSP). We test
the consistency of this explanation in lieu of the results of the corresponding
search in CMS, and other LHC searches for New Physics. Due to non-decoupling
effects from squarks the parameter space of these models is split into two
regions; in one region additional leptons via top quark production is expected,
while the other region sees a large probability for zero-lepton events. After
combining the relevant constraints we find that these models cannot explain the
ATLAS excess.
