In the final installment of its three-part series on the collapse of Bear Stearns, the Wall St. Journal focuses on the negotiations over the sale of Bear Stearns to J.P. Morgan Chase, including the mistake in the agreement that gave Bear the leverage to argue for an increase in the price from $2 to $10 per share.  WSJ, Bear Stearns Neared Collapse Twice in Frenzied Last Days.  Bear shareholders vote today on the merger.