The initials in the fake locket say R.A.B. We find out in 'The Deathly Hallows' that R.A.B. turned out to be Sirius Black's brother Regulus, who no longer wanted to be a Death Eater.
yes
No, he didn't die because he was Horcrux. Had he not been a Horcrux the killing curse would have killed Harry, instead of just the Horcrux.
The story of Harry Potter and The Half-Blood Prince is mostly about the horcruxes, Snape, and the book. The half- blood prince is Severus Snape, Harry's professor in Defense Against the Dark arts. Harry finds the first horcrux with the help of Professor Dumbledore, they destroy it to make Voldemort weak. Harry find a book that belong to the half-blood prince (Snape), the book was the source of praise Harry got in his Potions class it was also the source of trouble.
Harry Potter and the Deathly Hallows (Book 7.)
Yes, they are all destroyed (although Harry only destroyed one of them).
snape. his mothers maiden name was prince and he is halfblood. hence the halfblood prince.
yes
The fake locket Dumbledore died to obtain in Harry Potter & The Half-Blood Prince.
Yes, the horcrux inside of Harry Potter
he iin the entrance courtyard, ouside the entrance hall
The Horcrux which is Slytherin's locket that turns out to be a fake.
No, only the Horcrux inside him was.
No, but the diary Horcrux, was destroyed.
The Ring
The diary
yes
No, he didn't die because he was Horcrux. Had he not been a Horcrux the killing curse would have killed Harry, instead of just the Horcrux.