''THUKSD AY." JANUARY Gets Death Threat Y-" I 1 Mll I IE MRS. FRANCES COEN COOkE. Associated Press Photo.l , Tasadena, Cal., Jan. 10. (Pasadena police today disclosed that death threats were made against Mrs. Frances Cocn Cooke, ' divorcee and heiress. : She received a Becond extortion letter in .connection with the shooting of Leonard Siever, dentist. The letter repeated demands for 000. Previously a wrist watch taken from the slain dentist was sent to her with threats to kill her If she appealed to the police.