Ray avged 8.1 ppg and 7.2 rebounds over his first three seasons at MU before transfering.
Another guy from the class you mention that I considered, but obviously significantly impacted by injuries, was Teki Gill Caesar.
https://fox2now.com/sports/college/mizzou-signs-prized-high-school-recruit-montaque-teki-gill-caesar/
Gill-Caesar has been considered a top prospect for the 2015 recruiting class, but he graduated from high school in the spring, making him eligible to enroll in college this year. Schools such as Marquette, Memphis, Michigan State, West Virginia and Wichita State also tried to recruit him.
https://www.si.com/college/2015/07/15/missouri-basketball-montaque-gill-caesar-transfer
Missouri guard Montaque Gill-Caesar will transfer, reports ESPN's Jeff Goodman. Tigers coach Kim Anderson and Gill-Caesar came to a mutual agreement that transferring was the best option for both parties, according to ESPN.
Gill-Caesar said in a statement that he would “like to continue (his) college basketball career at a school where (he is) most comfortable.”