From "Star Trek: The Next Generation: The Mind's Eye (#4.24)"
Lt. Commander Data
I have surmised that Commander La Forge was conditioned by Romulans, a process referred to historically - and somewhat inaccurately - as "brainwashing".
But to what end? Why would the Romulans want to kill me?
Captain Jean-Luc Picard
The Romulans have always wanted to destroy the alliance between the Federation and the Klingons. If Mr. La Forge had killed you, Governor, I think you would agree, they might have succeeded.