According to Reuters, a British caver who helped rescue 12 boys from a Thai cave said on Tuesday that he will seek legal advice after Tesla CEO Elon Musk directed abuse at him on Twitter. Vern Unsworth told Reuters that he hasn't decided what to do next. The feud comes after Unsworth told CNN that Musk's submarine to help in the rescue would not work. After the comment, Musk responded to Unsworth by calling him a "pedo guy" and claiming to prove that he will prove him wrong.