taking thexanox. also cold turkey. >> he can't function. >> >> can't eat, shaking. >> at that point, were you thinking that it could be the medication that he's on? >> we had no idea. we're like jonathan, what's wrong? >> their son's transformation left the wagners stunned. just a few months before, jonathan's life was full of promise. >> this is who jonathan was right before it all started. >> i mean, he just looks like a normal guy having a good time. >> and i have the video of jonathan after.