Who is Longtail from warriors?

Longtail is a pale tabby tom with black stripes, light blue eyes, and a nick on one ear. He is later blinded.

When he is first seen, he shows his hatred towards Rusty, (later Firestar) the an unusual kittypet who joined ThunderClan.

When Tigerstar's evil nature was discovered, he shows his loyalty towards ThunderClan instead to Tigerstar, because he used to be his closest supporters.

He even shows his loyalty to Firestar when he turned into the deputy and leader.

He appears in Into the Wild to Fading Echoes, alive.

In Firestar's Quest, a rabbit scratched Longtail's eyes, and he has been blinded, so he retired as an elder.

In Fading Echoes, Longtail, Mousefur, and Briarpaw (later Briarlight) were fleeing from the tree-fall. Mousefur saw a mice, and wanted to get it, but Longtail told her to leave it. But she refuses so Longtail went to get the prey, but Longtail was smashed by a falling tree branch, along with Briarpaw. Longtail was found dead, and Briarpaw was found surviving the fall, but fataly injured. Mousefur says, it was her fault, that Longtail is dead.