Juan Diego Díaz, better known as La Quica, was a sicario in the Medellín Cartel.
Biography[]
One of La Quica's first tasks was the assassination of German Zapata in 1979; while killing him, he also killed a DEA Agent, Kevin Brady. Quica was arrested for these murders but was able to make bail and returned to Colombia unpunished (Descenso).
In Colombia, he becomes one of the most prominent sicarios for Pablo Escobar. He's involved in the murders of all possible collaborators of DEA. He is in a personal competition with another sicario, Poison, for having the highest number of murders.
La Quica finds several young boys who are recruited for Pablo's army, and he chooses the boy who explodes a bomb in a plane, killing more than 100 people, in an attempt to kill presidential candidate Cesar Gaviria.
Later, La Quica recruits Limón, a taxi driver in Medellín, who helps Pablo move around the city. One of the prostitutes working with Limón calls the police and La Quica is almost captured. In revenge, he kills all the prostitutes and tries to kill Maritza, a friend of Limón. Limón and Quica search for her, but Limón manages to protect her and tells Quica she is not home.
Quica is one of the last loyal men to Pablo, even though he's afraid, mostly because he knows that they are defeated. He's betrayed by Blackie, and tries to escape, killing others of Escobar's men, but is finally captured by the police.
Quica is interrogated by DEA agent Steve Murphy staring down the man who killed his partner all those years ago by telling La Quica that he's going to jail in America and the only way to avoid the death penalty is to give up everything he had on the cartel to which he did along with giving the location of Escobar's last soldiers and calling Pablo, but Pablo knows he's with the police and avoids being captured or killed that night. La Quica was extradited to the US and was sentence to 10 consecutive life sentences for Brady's murder along with over a hundred other murders in the bombing.
In real life, he was arrested in the United States in New York, on September 25, 1991. He was sent by Escobar to kill an important person for The Cali Cartel, but he was arrested by the police for traveling with a fake passport, he was arrested in Queens along with two men while he was using a payphone.