Spit-balling here, did he 187 her anons? Sounding like the arsonist that returns to the scene, lots of misdirection:
"She died of a brain aneurysm", then says that this is a serious game and people die, the money is enormous, "bigger than hamburgers". WTF?!
He's so trusted by her (worked together 14 hours a day for 8 or 9 months), but doesn't have an envelope of evidence?
Where are her kill switches?