Well this just happened (freezing weather death!)

Some random Sim outside the gym just died of freezing cold and everyone inside the gym including my own sim got the sad moodlet, and because it was winter everyone was just standing outside crying, I quickly moved out of there and then I noticed Dina was getting cold, I switched out and selected her family but when I did everyone was back in the gym but still sad of course but luckily Dina warmed up and I don't think anyone else died of freezing. I'm just glad it was a random, some sim named Izumi Yoshida, not a regular pre made!