A team from Quinn Emanuel Urquhart & Sullivan led by Alex Spiro and William Price delivered a huge win to Elon Musk on Friday when a jury in Los Angeles federal court rejected a $190 million defamation suit by British cave diver Vernon Unsworth.

How did the Quinn Emanuel lawyers do it? After all, there was no question the Tesla and SpaceX co-founder in a tweet to his 22.5 million followers called Unsworth a “pedo guy.” And if you falsely accuse someone of being a pedophile—that would certainly seem to be defamatory.