Answer:
I have no life but I can die. What am I?
My second is performed by my first. A thief by the marks of my whole might be caught. What am I?
I can never be stolen from you. I am owned by everyone. Some have more some have less.
I sit in a corner while traveling around the world. What am I?
I am easy to see, but no one likes looking at me. Without me, there would be no you. What am I?
I break away from my pack. I create holes in my victims. I can travel for miles and then disappear. I am part of a dying breed. What am I?