Investigators on Friday released two ransom notes connected to the kidnapping of Nancy Guthrie, an 84-year-old woman from the Tucson area. The notes were purportedly sent by the people who abducted her from her home in February, and they seek to prompt new leads as the search continues.

Local authorities say one note indicates Guthrie died shortly after she was taken, while the other includes additional messages, including an apology-style statement that investigators described as part of the communication to the family or media. Several outlets report that the Pima County Sheriff’s Department released the notes in hopes the public—or someone familiar with the writer’s style—can help identify the author.

Outlets also include procedural and legal context: two men detained earlier in the investigation were later released and are suing the sheriff’s department, according to reporting. One outlet adds that new evidence suggests the kidnapping was planned by an unidentified male, reflecting continuing review of investigative details even as the department relies on public recognition of the notes’ writing style.