Can you call CPS for parents not getting a child therapy? READ FIRST PLEASE

Okay so I volunteer at an after school program that's twice a week (not through the actual school) for middle school kids. We are not professionals in anyway when it comes to kids. All of us are parents, and have had training but this is volunteer thing and I don't know what to do. We just play games and do homework, nothing special. We have this one child who's been coming consistently for a little over a year. Let's call him Joe.

Joe has always been a weird kid. Like, not just socially weird, like he's just off. He's quiet and never talks. But I notice him laughing quietly when a child talks about their struggles or if they do/say something embarrassing. A few months in kids start saying that Joe is saying curse words. (We never hear him talk so we never know for sure, but we still pull him to the side and remind him the rules.) He sometimes sneaks off (to find toads and through them) or is on his phone during homework time. Just random things that aren't a huge deal, but Joe NEVER shows remorse for ANYTHING. All the adults noticed the lack of remorse, but again they're just small things he's done so we don't think too much of it.

6 months ago we get told by our supervisor that Joe has been getting in trouble at school for bullying other kids, and some of his targets come to the program so we need to keep an eye out. It's honestly just super weird because it's been a year at this point and I've never heard him speak so it's weird to think of him as a bully. But multiple kids have reported verbal issues with him where he tell them to F themselves and things like that. Okay, been volunteering with middle school for awhile, not surprised. But then the plot thickens...He told a girl in the program that her boobs were growing in crooked and she should chop them off. But he wasn't just trying to troll her, he was genuinely disgusted that she was devloping and was pretty serious when he said to chop them off. Okay, that's a bit more weird. We spoke with him and his mom and you could see she was embarrassed, but not surprised. Again, no remorse.

Joe finds me on Facebook and starts asking me on 3 seperate occasions if I have more pictures of my 6 month old swimming that I posted. Creeeeeepy so I block him and change my privacy settings.

Now a few weeks ago Joe and let's say another kid Adam were in the bathroom for awhile so one of our male volunteers goes to check and they are in the same stall with no shirts on. Adam bursts into tears and Joe b lines and tries to disappear, but is unsuccessful. Parents and police are called at this point because Adam is saying Joe forced him in the bathroom stall and also they are minors. Apparently this had been going on for months at school. Adam for some reason changes his story and says he consented to being in there shortly after the police started to ask questions and things got serious. The police investigate for a few weeks and determine that what happened was consensual. Adams parents don't buy it and put him in therapy. (Thank God.)

But Joe's parents are basically like "yeah we found gay porn on his laptop so we figured." Again, embarrassed, but not surprised. When the police were talking to us volunteers, they started to ask about Joe's behavior. Apparently the whole time that the police were talking to him they said that he showed no regret for what happened, and didn't care. Which is a pretty drastic contrast from Adam who couldn't stop crying. It also comes out that his parents don't leave him alone with his seven-year-old sister because they don't trust him.

A few weeks after the investigation said that it was consensual, Joe and his parents had a meeting with the supervisor because they wanted him to be able to come back to the program. (The answer was no but a meeting had to take place per procedure.) The supervisor asked him if he had learned anything from this and he said "yeah, never get caught being in the same bathroom stall as someone else."

That's what he learned?? Even if both he and Adam were gay and exploring, it was made clear that doing it at that particular time and place was inappropriate and he doesn't care.

okay, so after a very long story, The reason I'm asking if I can get the authorities involved is because it was recommended to Joe's parents by the police and the school that they get him professional help because he's not healthy. His parents have refused to get and help, and instead just put him in a different School. This kid is a creep, by the end of the day I feel really bad for him because he needs help and his parents won't get them that. Honestly, it's only a matter of time before he hurts someone else and I, as well as the other adult volunteers, think that he is a sociopath. But, again, we are not professionals. I know it's a long shot but I there any way this kid can get help?