Can the Red Ghosts be killed?

[Matthew Sternrage]

I took down many with my guild leader with me. I wielded the Bitter End, and he possessed a Blunderbuss with Steel Shot. We'd wait till we were near a Rage Ghost. I would freeze it, and it is funny to freeze it, you can still see it's location with the red glow, anyway, after it Froze, He Blunderbussed it and it died. One time, we got a Loot Skull Chest with just the Hat. Disney must add more stuff to find that cannot be found anywhere else but a Rage Ghost Loot Drop.