As in BBC:<p>"At the time of his death, Mr Barnett had been in Charleston for legal interviews linked to that case.<p>Last week, he gave a formal deposition in which he was questioned by Boeing's lawyers, before being cross-examined by his own counsel.<p>He had been due to undergo further questioning on Saturday. When he did not appear, enquiries were made at his hotel.<p>He was subsequently found dead in his truck in the hotel car park"