The pieces of the puzzle thus far are:
Convective wx.
Sudden loss of comms.
A number of bodies recovered, of which one of the first two was a flight attendant (possibly rear seat occupant)
Wide dispersed wreckage, of which empennage comprises a large section.
Short rapid climb preceeding loss of comms and ATC SSR/primary radar ident.
Displays hall marks of let`s get out of Dodge fast, in heavy clag and leaving the tail behind. The question is how do you make an A320 go ballistic.