  We report the detection of CO(3-2) emission from the submillimeter-selected
luminous galaxy SMM J14011+0252. The optical counterpart of the submillimeter
source has been identified as a merger system with spectral characteristics
consistent with a starburst at z=2.565. The CO emission confirms the optical
identification of the submillimeter source and implies a molecular gas mass of
5x10^{10}h_{75}^{-2} M(sun), after correcting for a lensing amplification
factor of 2.75. The large molecular gas mass and the radio emission are
consistent with the starburst interpretation of the source. These results are
similar to those found for SMM J02399-0136, which was the first submillimeter
selected CO source found at high redshift. The CO detections of these two
high-redshift submillimeter galaxies suggest the presence of massive reservoirs
of molecular gas which is consistent with the inferred high rates of
star-formation (1000 M(sun)/yr). These two systems appear to be associated with
merger events which may evolve into present day luminous elliptical galaxies.
