So first kind of a bummer the risperidone hasn't kicked in yet...for me it took about a day to reduce to voices by like 80% and they got a lot quieter and therefore easier to ignore they tend to be really loud. So I heard two kinds of voices those inside my head and those that sounded like they were outside like real sounds...those were the scariest but they were distinct from thoughts...for me the inner ones actually came from like different areas in my brain when I pictured them but I've never heard of this in other people...basically voices were on the right vs my inner voice on the left, when I'm well my inner voice is central. But yeah it sounds like he's having full auditory hallucinations. The thing is if he does something like attack the dog in my opinion he still needs to be punished for that even if the voices "made" him do it. My voices kept telling me I needed to crush my pet bird so she would be reborn as a mini dragon and be able to filter my voices for me thus eliminating them. I never did this...I still had a moral code...it's just extra pressure...if he starts listening to the voices things could get bad. I'm not saying grounding or anything but take the time to explain that this behavior is unacceptable and that certain things must never be done there is no hurting or killing of anything. I have no idea why the voices tend to go toward that kind of high drama stuff but they do....mine were actually mostly pleasant telling me I was a shaman and could heal the world by correctly channeling energy and stuff...they mostly tried to help me be better but then they would slip in that weird stuff about killing my bird or myself or other people like it was perfectly normal and even expected.

I would say its a good idea to teach him coping mechanisms...there are methods to reduce the voices although I only ever got this to work when I was already medicated. Usually this is any sort of high engagement activity. Sometimes it's as simple as watching an awesome movie or listening to music but some people actually receive commands this way do you have to determine if that's a problem. What personally works for me is singing mostly because it takes my full concentration to remember the lyrics and adjust my voice. Also I picture things in my head in three dimensions with movement and that's complex enough to stop them. I know I posted some tips in this in the past possibly under stopping the voices but here is a link to get you started...

Self-Coping for Psychotic Symptoms (Voices & Delusions)

This is not to say he will be able to control them for sure but a lot of people can and it's a huge relief. Just the idea that they can be stopped even temporarily is amazing...they are so overwhelming because you cannot shut them off and they start to be correct about things so you believe them...if they are wrong they usually just say they were just testing you or joking or something...it's whatever you have in your own brain that you have to fight so that's makes it harder. My voices concentrated on things I didn't know for sure...did I believe in shamans, remote healing, psychic communication, well I thought it was possible but unlikely but when it actually happens you start to believe...other things they just ruled out because I already had firm beliefs about them...I initially thought the voices were being transmitted by microphone but after 2 weeks I realized any battery small enough to fit in my teeth or whether would be dead by now so I switched to being psychic and telepathic... I thought briefly the military was involved but realized they were simply too inept and did not have the technology to do this. Basically my set beliefs and moral code did not change but what I worried about was being tricked and about things for which I did not have the answer. For example is all killing wrong? Would killing one person to save the world be wrong...my brain absolutely preyed on these kind of moral exceptions although I was never really inclined to hurt anyone I always worried about the possibility I could be confused by that and tricked into something horrible. So I think having a firm rule set with little room for exceptions is good and less confusing when being assaulted by the voices. But that's just me...I am a bit of an exception in that I had a short psychosis of about 1.5 months and fully recovered(so far fingers crossed)The experience is a bit different for everyone. One final thing you might want to look up is a girl named January with childhood schizophrenia...her parents help her by keeping her busy all the time...it's the engagement thing that really helps distract you from the voices.