Loni Adenn Delmira Monroe was 17 years old when she was last seen in Tucson, Arizona, on September 30, 2025. Public missing-child records identify her as female and place her disappearance in Tucson, but very little has been publicly released about the circumstances surrounding the day she vanished. There is no publicly available account describing where in Tucson she was last seen, who may have been with her, what she was doing immediately beforehand, or whether she was believed to be traveling on foot or in a vehicle. Authorities have also not publicly provided details about the clothing she may have been wearing or a destination she may have intended to reach. What is firmly documented is that September 30 marked the last known sighting of Loni and that her disappearance was subsequently entered into national missing-child records.
As the search for Loni continued, her case was circulated through the National Center for Missing & Exploited Children under case number 2063337, with the Tucson Police Department identified as the investigating law-enforcement agency. Her national record also carries NCIC number M178631060, allowing law enforcement agencies to identify the case through the national criminal-information system. Despite those formal records, the public notice contains unusually few details about what led to her disappearance. No verified public information explains whether Loni left a residence, school, public location, or some other place before she was reported missing, and no publicly released narrative identifies a person of interest or describes suspicious circumstances connected to her disappearance. Because so much of the timeline has not been made public, there is no responsible way to reconstruct her movements beyond the confirmed fact that she was last seen in Tucson on September 30, 2025.
More than the absence of a detailed timeline, the continuing public listing underscores how important even a small piece of reliable information could be. The current national poster continues to classify Loni as missing and directs anyone with information to contact authorities. The Tucson Police Department is listed as the investigating agency and can be reached at 520-791-4645, while anyone encountering a missing child can also contact 911 or submit information through the national missing-child system. The publicly available record does not identify a confirmed sighting after September 30, explain why contact with Loni was lost, or announce that she has been located, leaving the central question of where she went unanswered.
Loni’s disappearance remains a case with a clear starting point but very few publicly disclosed circumstances. A teenager was last known to be in Tucson, then apparently disappeared from the lives of those expecting to hear from her, while investigators were left with a case serious enough to be entered into both local and national missing-person systems. No publicly verified account provides the missing hours surrounding her disappearance, and no suspect, arrest, or criminal allegation has been publicly connected to the case. In overview, Loni Adenn Delmira Monroe was last seen in Tucson on September 30, 2025, and her case remains publicly listed as missing; until reliable information establishes what happened after that final known sighting, the search for answers continues.
Last Seen: Sep 30, 2025
