Strangest Situation -- Your Ruling?

[Zybomb]

Player A and Player B get it all on a flop of 789. There was some raising and Player B was the last aggressor (and thus the first to show his cards at showdown)

The turn comes T

River 7

Player B turns up QQ for a Queen high flush.

Player A curses up a storm, rips both cards in half and throws them in the air/at the dealer.

The cards float up in the air from being tossed and manage to fall onto the table with all 4 pieces (2 pieces of each card) face UP on the table.

Players around the table see a ripped T and a ripped J

Player to the left of player A says, bro are you nuts? You have a straight flush!

Player B jumps up and states that hell no, his hand is dead

Is this considered a tabled hand? A dead hand?

Coincidentally all 4 pieces of the cards ended up face up. If you say this hand is tabled (and thus cards speak and a Jack high straight flush is pushed the pot) would your opinion change if one of the four pieces hand gone off the table? Or fell on the table face down?