"I think it's the best place for me to go," Wortham told TigerAuthority.com. "I'm trying to get in another environment to get my life together and keep my head straight. I wanted to go to another community that felt like home."
In an interview with Scout earlier this month, Wortham spoke highly of Colorado State assistant coach Tim Duffie.
"Coach Duffie's a great coach," Wortham said. "We talk a lot. We talk about the positions and how I'd fit in, stuff like that."
While Wortham plays both defensive end and linebacker for Wilmer-Hutchins, Colorado State recruited him as a linebacker, he said.
Wortham said he'll bring good instincts to the Rams next year.
"I'm bringing speed, physicality," Wortham said. "I'm just trying to make it a good program."