Sago
Just because they said they were from San Francisco does not mean they are.
It could be Trevor from Leicester.
.... or the Nigerian Prince, trying a new angle.
I once got a message from my Parish Priest, asking me to buy Amazon vouchers. For the record, my Diocesan contact details are known, because I am Safeguarding Officer.
I was in a hurry, and said I would read later.
When I read later, I realised that my P.P would never use such flowery (and holy) language. He was a a grumpy so and so!
I have to admit, the scammers were good and I was nearly taken in.
However, I would never considering responding on GN to a complete stranger, with whom I had never previously interacted.
I spent years drumming internet safety into pupils and staff, suspicion is part of my nature.