Yep, and I hate that shit. There is absolutely no reason the government shouldn't already have her ass back on a plane to the UK.
Those agreements are to protect diplomats from politically motivated charges, not legitimate crimes. We need to act better than the assholes from elsewhere who abuse the laws in NYC and DC.
I feel for the innocent family. But our government doesn't even respect OUR laws, and the UK is locking up folks daily just for wrongthink. Justice is as unlikely as the victims resurrection.