Why is alleged murderer Sirius Black (Gary Oldman ... he joined the Death Eaters." We don't hear about Regulus again until "Harry Potter and the Deathly Hallows" (the film adaptation of the ...

Regulus Arcturus Black shared a close relationship with ... Sirius reckoned that Regulus had tried to leave the Death Eaters and, in doing so, was killed by other Death Eaters for getting cold ...