The Officer nodded. He seemed very tired, and he didn't look at Kirk.
He hadn't, after the first glance.
"Your father, and his two friends."
Kirk shivered. The horny lids dropped over his eyes. "I wish I'd
known," he whispered. "I'd have killed more of them."
The Officer put his hands flat on the top of the wall and looked at
them as if they were strange things and no part of him.
"Kirk," he said, "this is going to be hard to explain. I've never done
anything as hard. The Piruts didn't kill them. They were responsible,
but they didn't actually kill them."