Pablo Emilio Escobar Gaviria (; Spanish: [palo es.koa]; 1 December 1949 2 December 1993) was a Colombian drug lord and narcoterrorist who was the founder and sole leader of the Medelln Cartel. Dubbed "the king of cocaine", Escobar is the wealthiest criminal in history, having amassed an estimated net worth of US$30 billion by the time of his deathequivalent to $64 billion as of 2021while his drug cartel monopolized the cocaine trade into the United States in the 1980s and early 1990s.Born in Rionegro and raised in Medelln, Escobar studied briefly at Universidad Autnoma Latinoamericana of Medelln, but left without graduating; he instead began engaging in criminal activity, selling illegal cigarettes and fake lottery tickets, as well as participating in motor vehicle theft. In the early 1970s, he began to work for various drug smugglers, often kidnapping and holding people for ransom.

In 1976, Escobar founded the Medelln Cartel, which distributed powder cocaine, and established the first smuggling routes from Peru, Bolivia and Ecuador, through Colombia and eventually into the United States. Escobar's infiltration into the U.S. created exponential demand for cocaine and by the 1980s it was estimated Escobar led monthly shipments of 70 to 80 tons of cocaine into the country from Colombia. As a result, he quickly became one of the richest people in the world, but constantly battled rival cartels domestically and abroad, leading to massacres and the murders of police officers, judges, locals, and prominent politicians, making Colombia the murder capital of the world.In the 1982 Colombian parliamentary election, Escobar was elected as an alternate member of the Chamber of Representatives as part of the Liberal Alternative movement. Through this, he was responsible for community projects such as the construction of houses and football fields, which gained him popularity among the locals of the towns that he frequented. However, Escobar's political ambitions were thwarted by the Colombian and U.S. governments, who routinely pushed for his arrest, with Escobar widely believed to have orchestrated the DAS Building and Avianca Flight 203 bombings in retaliation.

In 1991, Escobar surrendered to authorities, and was sentenced to five years' imprisonment on a host of charges, but struck a deal of no extradition with Colombian President Cesar Gaviria, with the ability of being housed in his own, self-built prison, La Catedral. In 1992, Escobar escaped and went into hiding when authorities attempted to move him to a more standard holding facility, leading to a nationwide manhunt. As a result, the Medelln Cartel crumbled, and in 1993, Escobar was killed in his hometown by Colombian National Police, a day after his 44th birthday.Escobar's legacy remains controversial; while many denounce the heinous nature of his crimes, he was seen as a "Robin Hood-like" figure for many in Colombia, as he provided many amenities to the poor. His killing was mourned and his funeral attended by over 25,000 people. Additionally, his private estate, Hacienda Npoles, has been transformed into a theme park. His life has also served as inspiration for or has been dramatized widely in film, television, and in music.

Medellín (Spanish pronunciation: [meðeˈʝin] or [með̞eˈʎin]), officially the Municipality of Medellín (Spanish: Municipio de Medellín), is the second-largest city in Colombia, after Bogotá, and the capital of the department of Antioquia. It is located in the Aburrá Valley, a central region of the Andes Mountains in South America. According to the National Administrative Department of Statistics, the city had an estimated population of 2,508,452 according to the 2018 census. With its surrounding area that includes nine other cities, the metropolitan area of Medellín is the second-largest urban agglomeration in Colombia in terms of population and economy, with more than 4 million people.

In 1616 the Spaniard Francisco Herrera Campuzano erected a small indigenous village ("poblado") known as "Saint Lawrence of Aburrá" (San Lorenzo de Aburrá), located in the present-day El Poblado commune. On 2 November 1675, the queen consort Mariana of Austria founded the "Town of Our Lady of Candelaria of Medellín" (Villa de Nuestra Señora de la Candelaria de Medellín) in the Aná region, which today corresponds to the center of the city (east-central zone) and first describes the region as "Medellín". In 1826, the city was named the capital of the Department of Antioquia by the National Congress of the nascent Republic of Gran Colombia, comprised by present-day Colombia, Venezuela, Ecuador, and Panama. After Colombia won its independence from Spain, Medellín became the capital of the Federal State of Antioquia until 1888, with the proclamation of the Colombian Constitution of 1886. During the 19th century, Medellín was a dynamic commercial center, first exporting gold, then producing and exporting coffee.

Towards the end of the 20th century, into the beginning of the 21st the city regained industrial dynamism, with the construction of the Medellín Metro commuter rail, liberalized development policies, improved security and improved education. Researchers at the Overseas Development Institute have lauded the city as a pioneer of a post-Washington consensus "local development state" model of economic development. The city is promoted internationally as a tourist destination and is considered a global city type "Gamma +" by the Globalization and World Cities Research Network. The Medellín Metropolitan Area produces 67% of the Department of Antioquia's GDP and 11% of the economy of Colombia. Medellín is important to the region for its universities, academies, commerce, industry, science, health services, flower-growing, and festivals.

In February 2013, the Urban Land Institute chose Medellín as the most innovative city in the world due to its recent advances in politics, education, and social development. In the same year, Medellín won the Verónica Rudge Urbanism Award conferred by Harvard University to the Urban Development Enterprise, mainly due to the North-Western Integral Development Project in the city. In September 2013, the United Nations ratified Colombia's petition to host UN-Habitat's 7th World Urban Forum in Medellín, from April 5–11, 2014. In 2016, Medellín won the Lee Kuan Yew World City Prize. The award seeks to recognize and celebrate efforts in furthering innovation in urban solutions and sustainable urban development.