I haven't had a pet die, but I have had to get rid of a lot of them.
6 cats, one parakeet, a hamster, and two dogs. Not all at once though.
The dogs, Blackie and Fuzzbutt, I had to get rid of when I was younger and we moved back to Nebraska.
The hamster, Nibblet, when I moved again and couldn't take it with me.
The first cat, Tessa, I had to get rid of because my mom went to rehab and no one could take care of her.
The second, Toby (weird cat name), ran away because my psychotic cousin (also named Toby) would kick it whenever he got the chance. I hate him, what kind advlt does that? Atleast he got jailed for beating a man so bad that he now has permanent mental disabilities. (obviously not fortunate for the poor tattoo artist who he assaulted)
The next three, Precious/Gracie/Wayne, I had to leave with my mom when I moved to Alaska.
The parakeet, Kozmo, because the old lady below us had a fit because he had a panic attack at night ONCE. Seriously, once.
The last cat, Icarus (lovingly referred to as Icky), we got last year. He was my favorite, Completely white, bright gray(almost white) eyes, short haired, super calm and loving. Being born deaf probably has something to do with the calmness though. My sister went to college in Missouri and took him with her though.
And now I have a guinea pig and a fish tank.
I really really really want another kitty, but my current apartment doesn't allow uncaged pets

Its weird that I like cats so much, being that I'm allergic to them and have to take meds to keep my head from bursting into flames in their presence.