One of my group members did not contribute anything and I notified my course lecturer. Did I do the right thing? So to describe the scenario, here is what happened. We were assigned a group task for business throughout the entire semester. Each of us discussed what topics to cover and came up with an equal amount of workload for each member. I had noticed that close to the due date, we were quite far away from finishing the assignment (I myself was to blame as well) but we managed to pull it off by the very last few hours before it was due. Except for one of my team mates who did not post anything into our collaborative assignment document, but did mention she had her research ready and was ready to start. We also had a couple of team meetings with our course lecturer to notify our progress and also clearly stating the deadline of this task so she was completely aware of what to do and when to finish it by. I overlooked this until about 1 hour before it was due (as I was working during this time) I noticed that her piece of information was missing. I gave her the benefit of the doubt, and thought maybe she was finalising everything and then going to pull it off last minute. But nothing happened so I desperately tried to contact her only to find that she was completely offline from the phone and her provided social media. So we ended up submitting an incomplete assignment. I ended up contacting the course lecturer and he stated that considering what had happened she will receive a zero.

I later received a message the next day, stating an apology and her explaining how she had some "issues". She did not go into detail but I am assuming they are quite serious. Hence, I now feel extremely awful about her getting a zero. Should I recontact the course lecturer about this?

p.s I was definitely very disorganised with this assignment as I think i did not communicate often enough to encourage each other to complete parts by certain deadlines.
No, you didn't do the wrong thing. She did not notify you in advance of the deadline, and you needed to submit to avoid incurring your own penalties. She and the instructor can sort out the mark - it may be that her issues meet the guidelines for special consideration for example. Ultimately, it's none of your business and not your responsibility.

I know some instructors think that group work is a good way of preparing for teamwork in the real world. But, in the real world, problems like this are handled by the boss, not the other team members. On the other hand, you should learn from the experience to have all the team members commit to completing their pieces in advance of the deadline (preferably a week or so in advance if there's enough time), so that you have a chance to resolve such problems before the project completion date.