The Assassination of Luis Carlos Galán

A presidential campaign under threat

Luis Carlos Galán was a senator, founder of the New Liberalism movement and one of the most prominent candidates in Colombia's 1990 presidential race. He had taken a public position against the power of drug-trafficking organizations and supported extradition of Colombian traffickers to the United States.

By 1989, Colombia was experiencing an intense campaign of violence linked to the Medellín cartel and allied criminal networks. Judges, journalists, police officials and politicians had been assassinated. Galán's national prominence and anti-cartel platform made his security an exceptionally serious concern.

The rally in Soacha

On the evening of August 18, 1989, Galán arrived for a political rally in the main square of Soacha, near Bogotá. As he moved onto the platform before the crowd, gunfire struck him. He was rushed for medical treatment but died from his wounds.

The attack also killed councilor Julio César Peñaloza Sánchez and DAS security officer Santiago Cuervo Jiménez, according to later Colombian prosecutorial records. Another member of Galán's security detail was wounded.

Early investigative failures

The first phase of the investigation became notorious for wrongful accusations and misdirection. Several men were publicly presented as responsible and later proved innocent. Colombian authorities eventually acknowledged the damage caused by those false accusations.

Over time, the investigation shifted toward a broader conspiracy involving the Medellín cartel, paramilitary figures and people connected to state security. Later court decisions concluded that the assassination was part of a larger criminal plan directed against Galán because of his political position and opposition to cartel interests.

Alberto Santofimio Botero

Former senator Alberto Santofimio Botero became one of the most important convicted figures in the case. Colombian courts found that he had helped determine Pablo Escobar to have Galán killed. The Supreme Court ultimately imposed a 24-year prison sentence for his role as a co-author of the homicide.

Years later, Santofimio's defense sought review of that conviction, relying in part on later statements and retractions connected with witnesses. In May 2023, Colombia's Supreme Court rejected the review request. The Court stated that the defense had not produced the kind of new evidence required to overturn the final judgment, leaving the conviction in force.

The conviction of Miguel Maza Márquez

The case also reached Miguel Alfredo Maza Márquez, the former director of Colombia's now-defunct Administrative Department of Security, or DAS. Prosecutors alleged that he participated in the conspiracy by weakening Galán's protection and maintaining relationships with figures linked to the criminal network behind the assassination.

In November 2016, the Supreme Court convicted Maza Márquez of conspiracy and homicide with terrorist purposes as a co-author and sentenced him to 30 years in prison. The Court's judgment concluded that his conduct facilitated the plot and that elements within the security structure had helped make the killing possible.

What the courts established about the wider plot

Supreme Court decisions describe the assassination as part of a plan associated with Pablo Escobar and other organized-crime and paramilitary actors. The court record identified Jaime Eduardo Rueda Rocha as the material shooter and described links among cartel figures, paramilitary structures and individuals who compromised Galán's protection.

That does not mean every alleged participant was convicted in the same proceeding. Different suspects were investigated at different times, some cases produced acquittals or procedural disputes, and the Colombian justice system continued examining additional responsibility long after the central convictions.

Maza Márquez receives conditional release in 2026

In late February 2026, Bogotá's 16th Sentence Enforcement Court granted Maza Márquez conditional release. Reporting based on the judicial order states that the benefit came with a probationary period of 132 months, 29 days and 13 hours — roughly eleven years — as well as a bond and formal obligations.

The conditional release did not overturn his conviction or erase the 30-year sentence. It changed the way the remaining sentence was being served. By July 2026, Colombian reporting continued to describe Maza Márquez as free while a separate investigation concerning the 1990 assassination of Carlos Pizarro proceeded without a preventive detention order.

Why the case remains classified as partially solved

The assassination cannot be called wholly unresolved: major participants were identified, and final convictions established responsibility for important parts of the conspiracy. At the same time, the criminal network was larger than the people convicted in the best-known judgments, and Colombian authorities continued proceedings against other alleged participants decades after the murder.

For that reason, this archive classifies the case as partially solved with major convictions secured. That label reflects both the strength of the judicial findings and the fact that accountability for the entire conspiracy was not captured in a single final case.

Timeline

Current status

Major responsibility for the assassination has been judicially established. Santofimio's conviction remains in force, and Maza Márquez's 30-year conviction also remains valid despite his 2026 conditional release. Because investigations and accountability questions extended beyond those judgments, the case is best described as partially solved rather than as a completely closed single-offender homicide.