The first communication was received well after Ms Guthrie's disappearance.
"KOLD received the first ransom note at approximately 5 p.m. Monday, news director Jessica Bobula told NewsNation. The station sent it directly to investigators and did not report on it until authorities issued a joint statement with the FBI acknowledging they were aware of
ransom note reports."
Both TMZ and KOLD representatives said wording in the messages suggests the sender has familiarity with the Tucson area.
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