Marshall, 6-5, 275 pounds, of Overland Park (Kan.) St. Thomas Aquinas received his first of nine scholarship offers from the University of Arkansas on April 2.
St. Thomas Aquinas defensive coordinator and defensive line coach Chad McKinnis was an assistant for Razorback linebackers coach Rion Rhoades while he was the head coach at Hutchinson Community College in Kansas.
"My coach sent them my film, and Coach Rhoades liked it and he decided to offer me," Marshall said. "I was pumped."
Marshall has heard good things about Rhoades.
"They use to coach together and they're pretty good friends, and he's a good guy," Marshall said of his report from McKinnis.