[Spoiler] How to spare Lesnitsky?

[Enad]

I'm playing on Ranger Hardcore so I don't have any prompts.

What's the key to spare Lesnitsky? I assume E is to kill him, but how do I spare him?

[Charade]

E is to spare him, V is to kill him

[Enad]

Ah that does make sense. Thank you.