 What kind of person is Ledman?
THE HUNTED HEROES By ROBERT SILVERBERG The planet itself was tough enough—barren, desolate, forbidding; enough to stop the most adventurous and dedicated. I stopped, slipped out of the geiger harness, and lowered myself ponderously to the ground. I was neatly bound in thin, tough, plastic tangle-cord, swathed from chin to boot-bottoms, my arms imprisoned, my feet caught. And tangle-cord is about as easy to get out of as a spider's web is for a trapped fly. It had been spun on us only a short time ago, I realized. He wore an outmoded, bulky spacesuit and a fishbowl helmet, all but the face area opaque. I thought I knew everyone on sparsely-settled Mars.
 He is upset and lashing out because he feels betrayed
 He is upset and lashing out because he feels betrayed  He has violent tendancies and hates his old company  He has always been a nutcase  He has been untrustworthy his whole life