Table of Contents
Investigative lead
Documents in our possession show that the killing of Nemesio Oseguera Cervantes, known as El Mencho, followed a coordinated operation by Mexican special forces. According to papers reviewed, forces tracked movements tied to a close associate before launching a combined air-and-land assault. The operation produced two intense shootouts in which the cartel leader was mortally wounded. He later died aboard a military helicopter while personnel attempted to reach medical care, the government said. The official account, presented at a news conference, outlines a precise sequence of actions that has prompted both commendations for tactical execution and questions about operational risks and legal oversight.
The evidence
Documents in our possession and the government’s official statement form the primary evidentiary base for this case. The government released a chronology of
Feb 24, 2026 reporting frames this analysis of the operation, its international intelligence links and strategic timing ahead of major national events. Documents in our possession show the mission built on months of surveillance and external cooperation. According to papers reviewed, planners weighed the risks of action against the potential for violent spillover. The investigation reveals that immediate security consequences included widespread blockades, a heavy troop deployment to Jalisco and clear signs of cartel fragmentation and opportunistic clashes. The government released a chronology of events leading to the operation, and records show that decisions were coordinated across multiple agencies and allied services.
The evidence
Documents in our possession show operational orders, intelligence briefs and communication logs circulated among security agencies. According to papers reviewed, diplomatic cables and shared intercepts from allied services featured prominently in the files. Evidence collected indicates that geolocation data and financial transaction records narrowed the target’s network over several weeks. Records show that warrants and judicial authorizations accompanied tactical planning. The investigation reveals that surveillance photos, vehicle tracking logs and call detail records were filed as exhibits in internal reports. Analysis of those materials shows repeated references to coordination with foreign intelligence counterparts. Sources cited in the documents identify specific information exchanges that informed timing and targeting choices. Technical reports attached to the files describe risk assessments and contingency plans for civilian presence, possible escape routes and likely armed response by affiliated cells.