Dear Servant Of Jesus
Turrets can be demonic, I had ministered to an indivdual that had Turrets, and the disorder was carried through the generational line. The father, grandfather, and son had this disorder in the family I was ministering to. One of the spiritual roots we found was that the spiritual authority and order in the house was not there.
Once the order in the family start to change the symptoms began to leave. I also watched the same doccumentary did you notice the fathers of the children and how they dealt with the turrets? Just something to look for when dealing with this syndrome.