Multiple news outlets identified the Jazz fan as Shane Keisel. Keisel told ESPN that he did not swear at Westbrook or otherwise say anything inappropriate, and that he believed they were having fun. In an interview with local television station KSL, Keisel said Westbrook had been using profanity and “acting a fool,” which fans responded to by heckling him. Artest charged into the stands, followed closely by teammate Stephen Jackson, and threw a punch at a fan. In a statement after the game, the Jazz said arena security issued several warning cards to fans during the game.

Source: New York Times March 12, 2019 15:12 UTC