I think it's just human, but I'm only 95% sure. You see, a lot of people must have seen animal death, but less have seen human... Again, I'm only 95% sure! I'd have to agree. I think it's only human because many of the students at Hogwarts are sure to have seen an animal die before, but JK Rowling never mentioned them being able to see threstals.
No, Harry Potter survived.
Not all the death eaters die in Harry Potter.
Harry potter and the chamber of secrets
No, she was not.
A Death Eater
Hedwig
In the beginning of The Seventh Harry Potter Book, when The Death Eaters and Voldemort are chasing Harry.
Harry
The final death in Harry Potter and the Deathly Hallows is the death, and thus final defeat, of Lord Voldemort.
No, he had a near-death experience but didn't die.
Voldemort and the death eaters.
Black