Complex sentence: Mulder contacts his informant, X (Steven Williams), but X assures him that the government has no interest in Banton; despite this, X and two associates later attempt to remove Dr. Banton from the hospital.
Split into simpler sentences: Mulder contacts his informant, X (Steven Williams), but X assures him that the government has no interest in Banton. However, X and two associates later attempt to remove Dr. Banton from the hospital.