Murphy, listed at 6'1, 185 pounds, is rated as a three-star recruit by Rivals.com.
"He's a great character kid, and he's also one of the best athletes around maybe in the state of Washington," Johnson told The Tribune on Tuesday. "He's one of the best route runners I've seen at the high school level."
Murphy has been contacted by about 35 coaches in the last two months, Johnson said. Most of his offers are from smaller schools, but USC, Washington, Texas Tech, Colorado and Cal have all invited him to camps.
The Tribune was not immediately able to connect with Murphy on Tuesday, but Johnson said that he's followed the Utes for four years and is a huge fan of former Utah wideout Steve Smith.
"I don't know if Nick Saban could make him budge," he said.