After 10 years of relentless cross-border investigative work, Costa Rican law enforcement has brought a close to one of the country’s highest-profile manhunts, capturing top fugitive Alejandro Arias Monge — widely known by his criminal alias “Diablo” — during a major tactical operation in early July 24, 2026. The high-stakes raid unfolded before dawn on Friday at a remote rural farm located in Sarapiquí, a district of central Costa Rica’s Heredia Province.
When tactical officers from the country’s Judicial Investigation Agency moved in to secure the property, they were met with immediate heavy gunfire from armed members of Arias Monge’s criminal network. A protracted exchange of fire between officers and the suspects continued for approximately 60 minutes before authorities gained full control of the site.
The operation left five tactical unit members with injuries, four of whom were reported to be in stable condition as of the latest update from authorities. One injured officer, however, required transfer to a specialized medical facility for urgent care. During the confrontation, one additional suspect identified by the alias “Coco Guácimo” was killed in the crossfire.
Beyond the capture of Arias Monge, law enforcement secured two more high-profile arrests: senior ranking members of his criminal organization, including Jonathan Pérez Méndez, who goes by the alias “Tan.” Investigative sources confirm Pérez Méndez had been positioned as the heir apparent to take over leadership of the network if Arias Monge was ever caught or killed.
Authorities also confiscated a cache of dangerous weapons and surveillance equipment during the raid, including multiple AK-47-style assault rifles, a range of sidearms, and drone technology that investigators believe the criminal network used to track and monitor police movements ahead of potential operations.
Arias Monge first vanished from authorities’ radar back in 2016, when he failed to appear for a court hearing following his release from pre-trial detention. In the decade he remained at large, investigators have tied him to a string of serious transnational crimes, including large-scale drug trafficking, coordinated money laundering operations, multiple connected homicides, and direct threats against active law enforcement officers. Officials note that all allegations against Arias Monge have not yet been adjudicated in a court of law.
The decade-long search for the fugitive drew significant international backing, with the United States offering a reward of up to $500,000 for information leading to his capture through the U.S. State Department’s Transnational Organized Crime Rewards Program. U.S. authorities had previously designated Arias Monge as the leader of a violent criminal syndicate that operated across multiple countries in Central America, making his capture a priority for regional security.