Yes, he was killed in the fifth book, "Order of the Phoenix". It was during a battle with the Death Eaters inside the Department of Mysteries in the Ministry of Magic. The culprit was his cousin Bellatrix LeStrange.
In the book, Sirius is duelling with Bellatrix and he starts to taunt her because she isn't hitting him with any spells. She then hits him with a spell which we believe to be Stupify which throws Sirius back into the Veil and he doesn't come out the other side.
However in the film, Sirius and Harry are duelling Lucius Malfoy and another Death eater. Sirius pushes the other Death Eater away then Harry uses Expelliarmus to disarm one of Malfoy's two wands. At this Sirius says to Harry "nice one James" and then continues to fight. He then disarms Malfoy and blasts him away. Sirius smiles at Harry and then Bellatrix apparates onto a rock nearby and casts the Avada Kedavra curse hitting Sirius with it, he then falls into the Veil but is already dead unlike in the book.
Diary - Harry - Chamber of Secrets Marvolo Gaunt's ring - Dumbledore - Half Blood Prince Locket - Ron - Deathly Hollows Hufflepuf cup - Hermoine - Deathly Hollows Ravenclaw's diadem - Crabbe - Deathly Hollows Nagini - Neville - Deathly Hollows Harry - Voldemort - Deathly Hollows But Harry doesn't die
Nigel dosent die in the the deathly hallows part 2
Not All The Chararctors In Harry Potter Die But The Once's That Do Die From Battle Wth The Evil Side.
yes
His own killing curse backfired on him, because he used the elder wand on its own true master, harry potter.
Diary - Harry - Chamber of Secrets Marvolo Gaunt's ring - Dumbledore - Half Blood Prince Locket - Ron - Deathly Hollows Hufflepuf cup - Hermoine - Deathly Hollows Ravenclaw's diadem - Crabbe - Deathly Hollows Nagini - Neville - Deathly Hollows Harry - Voldemort - Deathly Hollows But Harry doesn't die
SPOILER ALERT: No he does not.
Yes, he strangles himself.
No he doesn't die.
No, she does not.
Nigel dosent die in the the deathly hallows part 2
You could read the book to find out.
Not all the death eaters die in Harry Potter.
He was hit by the killing curse as he was laughing at a joke :(
A death eater hit him with a curse while battling in hogwarts.
Fred Weasley dies in the Final Battle.
No.At least I don't think so.