Carlos Roque Monzón (7 August 1942 – 8 January 1995), nicknamed Escopeta (Shotgun), was an Argentine professional boxer who held the undisputed world middleweight championship for seven years.

[9] As of January 2018, Monzón holds the 2nd longest unified championship reign in middleweight history at 9 consecutive defenses.

Monzón spent five and a half years in prison for killing his wife Alicia by throwing her off a balcony, and admitted that he had hit every single woman that he had dated.

Charged with killing his second wife Alicia Muñiz in 1988, the former champion was sentenced to 11 years in jail.

After this success, Argentine boxing promoter Juan Carlos Lectoure pushed him into the international boxing scene by organizing fights with foreign boxers such as Douglas Huntley, Charles Austin, Johnny Brooks, Harold Richardson, Tommy Bethea, Bennie Briscoe (a ten-round tie) Manoel Severino and Eddy Pace.

World middleweight champion Nino Benvenuti had long had a distinguished career that included championships in 2 divisions and 2 wins in 3 bouts vs all-time great Emile Griffith.

He had lost the year before to American Tom Bethea in Australia, but in an actual title fight in Yugoslavia, he avenged that loss.

Monzón's middleweight championship title was lifted in 1975 by the WBC for not defending it against mandatory challenger Rodrigo Valdez.

Monzón handed Valdez a beating, winning a 15-round unanimous decision and unifying the world title once again.

In 1973, Monzón was shot in the leg by his then wife of 11 years, Mercedes Beatriz García,[18] with whom he had a daughter and two sons (one of whom was adopted).

In 1975, he began a very publicized romance with Susana Giménez; they had previously met in the 1974 thriller La Mary, directed by Daniel Tinayre, where the two played husband and wife.

He went to Italy with Giménez to participate in a movie, and started increasingly traveling with her to locations in Brazil and the rest of Latin America, allowing himself be seen with her, although still legally married.

Giménez began wearing sunglasses more often, presumably to hide her bruises, and many times, paparazzi had to be hospitalized from the beatings suffered at the hands of Monzón, who had unpredictable violent outbursts.

On 14 February 1988, while vacationing in the resort city of Mar del Plata, after a heated argument, he beat Muñiz.

According to the investigation after this incident, he strangled her into unconsciousness, picked her up, and pushed her off the second floor balcony, killing her, during which he followed her in the fall, injuring his shoulder.

[21][22] In January 1995, Monzón was given a weekend furlough while serving his term in Cárcel de Las Flores, Santa Fe Province, to visit his family and children.

On 8 January 1995, when on his way to returning to jail after the weekend, he and a passenger, Gerónimo Domingo Mottura, were killed instantly when their vehicle rolled over near Santa Rosa de Calchines.