Oakheart was killed by an apprentice named Graypaw when they were fighting near the river, while Redtail was killed by Tigerclaw during a battle with ShadowClan. Tigerclaw secretly killed Redtail and blamed it on another cat to gain power within ThunderClan.
in the battle that took place as rusty (fire star) joins thunder clan, red tail killed oak heart. tiger claw tells raven paw to go and get help for red tails injuries, but instead raven paw hangs back. he stayed just long enough to see tiger claw kill red tail. tiger claw hoped he would be chosen as the new deputy. if you want to know the rest, read "into the wild" which is the first book in the original warriors series
If you mean in publishing order, then Redtail in Into the Wild is the first cat to die. Chronologically, I have no idea.
In "Fire and Ice," the cats that die are Redtail, a ThunderClan deputy who is killed by Tigerclaw, and Whiteclaw, a RiverClan warrior who dies in a battle with ThunderClan. Additionally, Frostfur's kits are killed by ShadowClan warriors during a raid on ThunderClan camp.
no
Just wherever.
Yes, Ivykit dies as a kit in the Warrior Cats series. She dies from illness in "The Darkest Hour".
Yes, in the "Warrior Cats" series, it is revealed that Tigerclaw did kill Redtail in order to advance his own position within ThunderClan. Tigerclaw's betrayal and deceit led to a significant conflict within the clan.
The clan where warrior cats go when they die is called StarClan. It is a group of the spirits of deceased warriors, leaders, and medicine cats who watch over and guide the living cats of the forest.
When the cats battle.
So far she hasn't died yet.
One of them is Tallstar. Another one is Pinestar.
Yes, he did die. I'm looking on the Warrior Cats Wiki, and it doesn't say how.
yes, he was slayed by Tigerstar.