Advice on classmate who needs help?

Hey all;

I'm in my first semester of nursing school, and one of my classmates needs some help. We have a group text that was put together for a group project, and in this conversation at multiple times an individual has indicated that they have a drinking problem.

This morning I woke up to messages that implied that they drove drunk last night to get more alcohol. This is really the breaking point for me. Drinking on your own time is whatever, but this shows really bad judgment. In the group text, we have counseled several times in the past to A) keep the group chat somewhat kosher and school related, and B) that they need to get help. Individually, both in person and in text, I've told them that they need to get help and that they're either going to get kicked out of nursing school, or if they make it through, they're going to lose their license if they can't get this under control.

We all have been trying to kinda let the group chat ride, but it's been escalating, and now it's to the point where I feel like A) they definitely need help, but B) they're gonna kill someone as a nurse (or on the streets, apparently) if nothing is said. I don't want to ruin their life by reporting it to the nursing school, but at this point, I guess they're the one doing that.

Let me be clear; I don't care about drinking. This isn't some moral judgment thing. I enjoy a beer or whiskey here and there, and we're all in college: it is what it is. This is a group chat though, unofficially affiliated with school. It's somewhat low key and informal and we've all shared various things that are not 100% school related, but they consistently bring up nothing but how they're drinking, despite gentle attempts and redirection from the rest of us.

Here's my question to you all; is it better to try and anonymously report this to the nursing school staff so that they can try and gently intervene before it gets to the point where they're completely thrown under the bus? Ideally, they'll get counseling; it's a hella competitive program, and they're a smart person, and I hope they will be a great nurse if they can get this under control. At the same time, if they don't, it's not going to be a good thing.

The other option would be to go to administration in person and show the chat logs. I feel like if that happens, they're getting booted out unilaterally, and I also don't want the rest of the people in the group chat to get any sort of ramifications for having let it escalate TO this point.

TL;DR: Classmate consistently exhibits bad judgment regarding alcohol that seems to be escalating, and now it seems to be to the point where they're committing a felony.

Probably going on a bit long, but just trying to get feedback from everyone here, based on both your school experiences and your professional experiences.

Thanks for the feedback.