Answer:
I am a rock group with four members. All dead one was assassinated.
I'm not a bird but I can fly through the sky. I'm not a river but I'm full of water.
My tail is long, my coat is brown. I like the country, I like the town. I can live in a house or live in a shed, and I come out to play when you are in bed. What am I?
You use a knife to slice my head and weep beside me when I am dead.
Soft hairy from door to door. I am the pet that always stays on the floor.
What age most travelers have?