Which is worse than a murder count, for the VvV participants they get a target on them that won't go away until a VvV player kills them.Yes, the blue (non-VvV) character who attacked the blue (VvV) character turned orange. When the blue (non-VvV) character killed the blue (VvV) character he was unable to give a murder count.
So this says to me. If you are in VvV, you are not going have the option of giving out murder counts, even to non-VvV characters because as soon as they attack you they become temporary VvV.