Got Koko died from foaling complications from having a Bernardini colt at the beginning of March.
http://www.bloodhorse.com/horse-raci...-got-koko-dead
Saarland died from a freak accident where he ran into a feeder apparently.
http://www.bloodhorse.com/horse-raci...-saarland-dead
Both horses were only 10 years old.