S5-E21. The Tupperware Box Story.

In the end, it's revealed that the Tupperware has the tongue of Mr.SayNay, the one who raped La Roche's Mother. LaRoche has his tongue collected by himself or someone else. Mr.SayNay, though unable to speak,  tries to utter some words. "Hae Hao". 
If you hold your tongue with fingers, and tried to say Red John, those are exact words comes from your mouth. Perhaps LaRoche is Red John or LaRoche has taken a favor from Red John.