I'll tell you why I can't buy into that theory fwiw

..
Because I can't imagine even the dumbest of kidnappers would leave a ransom note on a vehicle at the aforementioned kidnappers own house, (even though, we know
it was legally the bosses vehicle and house) then apparently make NO attempt (that we have any reason to believe) to follow through w/said kidnapping, only to call the police HERSELF to report the fire @ which time the ransom note was found, not burned itself since the vehicle was not burned, but doused w/gasoline...which IMO would give ample opportunity to EB or AB for that matter to remove the note, IF an attempt to kidnap
had been made and failed..all before LE or the fire dept. got there this woman would have grabbed that note before anyone else arrived, IF her kidnapping plan had gone awry... jmo...Besides, who in the world would leave a ransom note before they
had their intended victim? EB is evil and cunning, but she's not stupid imo..
I don't believe a kidnapping was ever in the works, I honestly think that they EB or possibly EB and AB thought that LE would ask about any children in
their house being ok...prompting the *discovery* of Zahra being taken by 'mistake' and that didn't happen or she/they could have planned on bringing up 'checking on Zahra' during that initial period and for some reason chickened out, opportunity didn't seem right..whatever and the 2nd call had to be made...all JMHO...