Musk responded by calling Unsworth a "pedo guy", later tweeting: "Bet ya a signed dollar it's true". "According to a subsequent Twitter post, you did so out of anger". Replying to a person's tweet about the incident, Musk on Tuesday said, "You don't think it's odd [Unsworth] hasn't sued me?"
"You don't think it's unusual he hasn't sued me?"
Speaking to Sky News on Wednesday, Mr Unsworth said he could not comment on the issue, but added: "It's all being dealt with, that's all I can say".
Mr Musk's latest tweet was written in response to a former journalist, who had accused him of hypocrisy.
Diocese denies claim that Wuerl knew years ago about allegations against McCarrick
Vigano writes he now believes Francis was being "deceitful", gauging whether Vigano "was an ally of McCarrick or not". Vigano also said Washington Cardinal Donald Wuerl was aware of reports of sexual abuse by his predecessor McCarrick.
"So you actually did nothing and yet imply you are a truth-seeker", wrote Mr Musk.
"He can stick his submarine where it hurts", Unsworth said on CNN at the time.
But some observers have suggested Mr Musk should curtail his use of social media bearing in mind he has said he is working 120-hour weeks, is under great stress and is making use of the sedative Ambien. "Sorry pedo guy, you really did ask for it". But the missives served as fresh reminders of Musk's erratic Twitter tendencies and reinforced concerns about whether he can adhere to the SEC's rules, now that he's decided Tesla will stay public and continue to fall under the agency's oversight.
But it turns out Mr Unsworth is taking legal action against Mr Musk.
F1 director Charlie Whiting 'amused' by Hamilton's Ferrari comments
Just like a year ago , Lewis Hamilton led into turn one and through Eau Rouge, Raidillon and up the Kemmel straight. This time the rain stayed away, and Vettel looked more composed.
In his tweets published on Tuesday, Musk appeared to suggest it was suspicious that he had not yet been sued and again called for his claim to be investigated.
"He's not going to become a typical CEO, so the question is whether he's going to make statements that run afoul of securities laws", said Ken Bertsch, an executive director at the Council of Institutional Investors, a trade group that represents public pension funds that own Tesla shares.
Elon Musk is denying that he cried during a recent interview with The New York Times in which he described how he'd become overwhelmed by the stress of running electric vehicle company Tesla. I don't know who his lawyers are or where they're based.
Numerous commenters have called Musk out over his offhand defamatory statement.
As California firefighters battled the state's largest wildfire, Verizon throttled their data
Under the department's plan with Verizon, speed caps might be hit if data use goes over 25GB before the monthly billing period ends.