Russian oligarch leads mercenaries against Ukraine

Read MoreThe Wagner Group, a private mercenary army, is spearheading the Russian offensive around Bakhmut. The group is led by Russian oligarch Yevgeny Prigozhin. Debora Patta reports.The Wagner Group, a private mercenary army, is spearheading the Russian offensive around Bakhmut. The group is led by Russian oligarch Yevgeny Prigozhin. Debora Patta reports.