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Constraining properties of and the processes leading to environmentally quenched galaxies soon after the peak of cosmic star formation (z ~ 2) has so far proved technically challenging and inefficient. However, with the advent of the multiplexed near-infrared integral field instrument, the K-band Multi-Object Spectrograph (KMOS) on the Very Large Telescope, this is changing. The observing efficiency of KMOS and guaranteed time allocated to the KMOS Cluster Survey (KCS) has enabled a study of cluster galaxy properties in overdensities spanning 1 80, by ~50%. It is also the largest sample of galaxies in a shared environment at this redshift for which an FP has been constructed. From the strong redshift evolution of the FP zero-point, we derived a mean age of the galaxies in this cluster of 0.7 +/- 0.2 Gyrs. We present the properties of these recently formed and newly environmentally quenched galaxies to constrain the mechanisms that caused a shutdown in star formation in this rich, high redshift cluster.