A cardboard cut-out of Elon Musk, co-founder and chief executive officer of Tesla Inc., stands on display at the Moscow Tesla Club in Moscow, Russia (Photographer: Andrey Rudakov/Bloomberg)  

Tesla Board Probed Allegation That Elon Musk Pushed Employee

(Bloomberg) -- A day after handing in his resignation from Tesla Inc., a senior leader returned to work last September to tie up loose ends and say goodbye to his colleagues.