During Lord Voldemort's first attempt to take over the world, Death Eaters went on random anti-Muggle killing sprees. During one of these sprees, they killed McGonagall's first love, Dougal McGregor.
The overused, somewhat cliche 'Chosen One' trope was perfectly executed in the Harry Potter books, but the movies ruined it by leaving out an important twist.
True to your own self- Lord Voldemort never ever defied what he ... Know your enemies well-From the death eaters to his most sworn enemy Harry Potter, he knew every hooks and crooks about them.