welcome. the fate of the russian mercenary leader who challenged vladimir putin in an aborted coup attempt is shrouded in mystery and intrigue worthy of a page-turning spy novel. according to russia, yevgeny prigozhin, head of the wagner group, is listed among the ten people who were aboard a private jet that crashed north of moscow today killing all on board. prigozhin, once known as putin s chef, led a brief mutiny against mr. putin in june marching his army on moscow. his act of rebellion gave way to widespread speculation that prigozhin could be marked for assassination. as to what or who may have been behind today s crash, president biden saying there is not much that happens in russia that putin is not behind. but the president adding, he doesn t know for sure. richard engel, who has covered prigozhin extensively, has our report. reporter: it seems russian president vladimir putin may have gotten his