>>23306104
The Murasame Lab probably just did the brainwashing, but the actual "heart" came originally from Zeon. Think of it like Martha and Alberto reprogramming Marida to fight for them.

Also, what >>23306110 said. Think about it, Anon. The Earth Federation has been completely MIA throughout what we've seen of this timeline's 0085. Earth itself is a wreck.
Gihren, on the other hand, has the means, motive and opportunity to put the hit on Kycilia.