UPDATE 3-JPMorgan in tentative $13 bln deal with U.S. Justice Dept -source

WASHINGTON/NEW YORK, Oct 19 (Reuters) - JPMorgan Chase & Co has reached a tentative $13 billion deal with the U.S. Justice Department and other government agencies to settle investigations into bad mortgage loans the bank sold to investors before the financial crisis, a source familiar with the talks said on Saturday.