Elon Musk due back on witness stand in defamation trial stemming from tweets

LOS ANGELES (Reuters) - Tesla Chief Executive Elon Musk was due to resume testifying in his own defence on Wednesday at the trial for a defamation lawsuit filed by a British diver whom the Silicon Valley billionaire called "pedo guy" on Twitter.Musk, the 48-year-old South African-born entrepreneur, apologised for the tweet during his first day on the witness stand in U.S. District Court in Los Angeles on Tuesday, saying he was responding to an "unprovoked" insult by plaintiff Vernon..