If Brock killed her friends Clementine would be more than upset. She definitely wouldn't be friends with Brock anymore, that's for sure.

"The only trouble we've had so far is from the mutt's. And my friend Nick got electrocuted but he's okay now, mostly." though not for lack of trying on the Gamemaker's part. Clem had thought he was dead for a few moments and it had scared her badly. "I haven't seen many other Tribute's."