Kellan has improved big time since high school and you have to look at who else was on his prep school team to try to guage why his stats were how they were:
Anthony Crater (Ohio State); Max Huc (Princeton); Trey Blue (Fordham); Mark Lyons (Xavier); Terrell McKenziee (St. John's); Emmanuel Negedu (Tennessee); Charles Abouo (BYU); Justin Johnson (Fresno State); Chauncy Gilliam (Maryland-BC);
With the exception of Crater, the rest of the players are in starting contention for their respective teams. Scoring double digits only 10 times is very justifiable with a team like that. Also 6-foot-6 4-star Givon Crump was a the roster and he'll be a very successful high major forward.
Thornton had scholarships offers from a ton of schools: Evansville, Loyola-Maryland, UMKC, Akron, NIU, and Fordham but after consideration, really wanted to go to Illinois State (who offered him before using the scholarship on Ty Modupe and Lloyd Philips).
He's 6-foot-7, very skilled, and very versatile. He'll honestly be one of the better freshmen in the MVC. I saw him in scrimmages and I saw him in high school and AAU and I think he'll suprise a lot of people.