Hi what was the name of a episode of the x-files about a seriel killer that invades people's dreams?

The episode that comes to mind is Season 8 Episode 7 - Via Negativa

Synopsis - Working without Scully's input, Doggett and Skinner try to avert the mysterious murder spree of a drug-induced, religious cult leader and it becomes clear that the man can enter the dreams of the people he knows and can kill them in their sleep.