The British caving expert who coordinated the rescue of 12 Thai children trapped underground has informed Elon Musk he is preparing to sue him, after the Tesla founder labelled him a βpaedoβ on Twitter. Vernon Unsworth, 63, enraged the billionaire when he rejected his offer of sending a submarine to assist the rescue, pointing out that it was not a workable solution, and deriding it as a "PR stunt". He said Mr Musk could "stick his submarine where it hurts." Mr Musk hit back, calling Mr Unsworth a βpaedo guyβ, in a now-deleted tweet. He then issued an apology, and said he had tweeted βin angerβ. Elon Musk, founder of Tesla But on Tuesday he reignited the controversy by mocking Mr Unsworth for not following up on his threat to take legal action. On Wednesday it emerged that Mr Unsworthβs lawyers had in fact sent Mr Musk a letter on August 6, informing him of their intention to sue for the βfalse and defamatory statements.β βYou published through three different twee...