Nancy could've been a victim of a romance/sweetheart scam.
Think about it. She's an elderly, single woman who may want some romantic companionship. From what I've heard, she recently lost her dog so she's probably extra lonely all alone in that big house. Sure, she has a church community but she's been attending virtually for awhile and could be spending more time online. Her Facebook account looks like the typical random mishmash of stuff and doesn't necessarily scream tech-savvy. She also appears to have lost some weight and she may have been feeling a bit more confident.
Social media is full of scammers. I could easily see a bad actor luring into their web of lies while gassing her up. They're messaging back-and-forth all day, every day. She tells him about how her life story, her hopes and dreams, her values, and how her days are going. He's a successful silver fox who actually isn't because they're all stolen photos. Maybe he isn't really just one bad actor, but a group of them who have figured out who she's related to and that she has money.
Anyway, she's telling him about her children and how Annie is a jeweler. Perhaps Nancy has told the scammer man about the Tucson Gem & Mineral Show, which if I'm not mistaken, is the largest show in the world for rockhounds. People travel from all over for this event. Scammer man/men are interested and tell Nancy that this would be a great time to meet. What they're really thinking is, "Jackpot! Now's a great time to travel to Tucson, blend in with the crowd, and rob Nancy."
What makes me pause with my theory is that these scammers usually don't ever want to actually meet. Maybe they wanted to just be in the area and wait until she's out to rob her house. Who knows, maybe they're extra bold in this instance. Let's go back to their messaging back-and-forth. On fateful January 31st, Nancy says something like "Ok, I'm going to my daughter and son-in-law's house for dinner tonight and tell them about our relationship. I'm so excited for you to meet them!!!" I've heard that a lot of seniors (not all) are embarrassed to tell their kids that they're dating again, so this could very well be a big deal for her.
Annie and Tommaso have been drinking while cooking, and don't want to pick up mom under the influence, so they request an Uber ride for her instead. Nothing weird about that. Nancy arrives and tells them her amazing news once they've all sat down for dinner. Annie and Tommaso are all "WTF!? You're talking to a scammer! Cease all communication IMMEDIATELY." Nancy is upset and has been so brainwashed that she messages scammer man when she comes home saying, "I'm home now. My family doesn't believe in our love and I'm so upset. They want us to break up now." He replies with, "Nothing can come between us, my love. They'll come around. Don't give up!"
At this point, the scammer/scammers are beyond PO'd at Annie and Tommaso. They've already bought tickets, flown into Tucson, and now their plans are this close to being thwarted. They decide to take out the ultimate revenge by kidnapping Nancy in the middle of the night and sending ominous ransom notes.
I'll be the first to admit that I have an active imagination, but you can't tell me these scams aren't common. Check out
this video,
this article, and
this article. My mom also used to be a flight attendant and told me about a passenger she had once on a trip coming back from London. The passenger was an elegant-looking, elderly woman who was visibly upset. When the crew members asked what was going on, she said that she was totally stood up at the airport the other day by a man she was supposed to meet and had sent a lot of money to. She really thought they were in love, and was so ashamed and embarrassed to tell her kids. At least she made it home alive.