Murphy announced the move on social media Tuesday, tweeting, "Looks like I'm headed to LA! Go Bruins!"
Murphy twice had seasons cut short because of serious knee injuries with the Red Raiders, prompting him to take a medical retirement late in the 2016 season, when he was a redshirt sophomore.
Ben Bolch covers UCLA football, basketball and every other sport on campus. He previously covered Bruins basketball from 2010-11 but doesn't believe he deserves any blame for his hometown N.C. State Wolfpack temporarily halting John Wooden's run of national championships in 1974 when he was 2 months old.