Drax is one of the Guardians of the Galaxy.<br />When he first appeared he made it clear that his driving motivations was to kill Thanos.<br />Thanos, Drax explained, had killed his family.<br />Marvel movie fans wondered how Thanos killed Drax family.<br />Now, according to ComicBook.com, Joe Russo has revealed the family's cause of death.<br />Russo revealed that Thanos went to Drax planet and wiped out half its inhabitants.<br />Drax family was among the half that died. <br />
