More than three characters were killed, see related questions for a full list.
Bellatrix Lestrange.
Voldemort killed Snape.
she was killed by her aunt, Bellatrix Lestrange.During the Hogwarts battle. In the seventh book, part 2 of the Deathly Hallows movies.
Yes, Harry had a snowy owl named Hedwig but she was killed in Harry Potter and the Deathly Hallows by a death eater during the battle of the seven Potter's.
Neville Longbottom
Harry Potter and the Deathly Hallows Part 2.
No, only the Horcrux inside him was.
harry killed voldemort
Bellatrix Lestrange.
he found the truth and killed voldemort
Voldemort killed Snape.
Yes, he does kill Lord Voldemort in the end of Deathly Hallows.
Many people are killed in the Deathly Hallows but after? That's the last book. Harry Potter and the Deathly Hallows. Unless your talking about the epilogue but that's still part of the book.
Draco Malfoy wasn't killed.
Yes, Bellatrix Lestrange dies in Harry Potter and the Deathly Hallows. She is killed by Molly Weasley during the Battle of Hogwarts, because Bellatrix attacked Ginny.
No. Although in my opinion, this is rather unfortunate.
nevile longbottom