Bingo! This was a snip of hearsay early in the case, i by chance read, and the thought just hit me that this would make the text she sent to whomever translate into a sensible or plausible meaning. IMO, she went with one, two, or more people she only trusted because they were close to people she had trusted. This makes, "the i don't know these people." or however she wrote it..mean, she began to feel uneasy, she trusted these people from being friends, family, or tied to others, but when she began to feel unsafe, she wrote, "IDK these people", but those she was in contact with, and she felt close to did! I could see myself writing this if someone sent me to run an errand of some sort with someone they knew and i didn't and i started to become uncomfortable. Absolutely!
This is why, imo, the text seemed so laize faire for her predictament, which should have sounded a bit more urgent. I could see someone not taken the usual or more measures to get out of the situation, when with people she does not know, if others who seem close to her do know them, so in PH's mind, she is thinking, of course she is over reacting and all will be okay!