KEY POINTS
  • Tesla CEO Elon Musk takes the stand in his own defense in a defamation lawsuit filed by a British diver whom the Silicon Valley billionaire called "pedo guy" on Twitter.
  • He apologizes for the tweet.
  • Judge Stephen Wilson said the case would hinge on whether or not a reasonable person, given context, would take the phrase "pedo guy" to mean that Musk called Unsworth a pedophile.

Elon Musk is due to resume testifying in his own defense on Wednesday in a defamation lawsuit filed by a British diver whom the Silicon Valley billionaire called "pedo guy" on Twitter.

Musk, the 48-year-old CEO of Tesla, apologized for the tweet during his first day of testimony in U.S. District Court in Los Angeles on Tuesday, saying he was responding to an "unprovoked" insult by plaintiff Vernon Unsworth.