We present a preliminary result from a search for walking
technicolor particles using leptonically decayed W plus two jets with at least
one b-tag using 109 +/- 7 pb^-1 of data taken by the Collider Detector at
Fermilab (CDF).  We search for technipion mass peaks in the invariant mass
distribution of the two jet system and technirho mass peaks in the invariant
mass distribution of W+2jet system.  We do not see any significant excess in
our search sample, and set 95% confidence level upper limits on the production
cross section and exclude a region of the pi_tau mass v.s. p_T mass plane.