A CASPER WOMAN MADE HER FIRST APPEARANCE IN FEDERAL COURT THIS MORNING, AFTER ALLEGEDLY LEAVING A DEATH THREAT ON CONGRESS-WOMAN CYNTHIA LUMMIS'S VOICE-MAIL. BESIDES THE THREATENING VOICEMAIL, SHE IS ALSO ACCUSED OF MAILING ENVELOPES CONTAINING SUSPICIOUS POWDER TO BOTH THE CASPER POST OFFICE AND SHERIDAN COURT HOUSE. THE FBI SAYS SHE'S BEEN BUSY ALL YEAR HARASSING GOVERNMENT OFFICIALS... EVEN IDENTIFYING HERSELF AS SHE MADE DEATH THREATS ON LUMMIS'S VOICEMAIL. INVESTIGATORS SAY ONE OF THE OFFENDING LETTERS HAD QUOTE "HOPE YOU ENJOY THE ENVELOPE CHEMICALS" WRITTEN ON THE OUTSIDE. WHITE POWDER FROM ONE ENVELOPE WAS TESTED AND SHOWED NO INDICATION OF BIOHAZARD. FBI SPECIAL AGENT KENT SMITH TOLD K2 NEWS, EVEN IF CASEBOLT CAN'T OR WON'T FOLLOWUP ON THE THREATS THEY ARE STILL A SERIOUS CRIME. SHE COULD FACE UP TO 15 YEARS IN PRISON AND A $750,000 FINE IF CONVICTED ON ALL COUNTS. CASEBOLT IS DUE IN COURT NEXT WEEK.