  Laser slowing of CaF molecules down to the capture velocity of a
magneto-optical trap (MOT) for molecules is achieved. Starting from a two-stage
buffer gas beam source, we apply frequency-broadened "white-light" slowing and
observe approximately 6x10^4 CaF molecules with velocities near 10\,m/s. CaF is
a candidate for collisional studies in the mK regime. This work represents a
significant step towards magneto-optical trapping of CaF.
