Question: Omar Treviño Morales's brother is known by what alias?
Context: Miguel Ángel Treviño Morales (born 18 November 1970), commonly referred to by his alias Z-40, is a former Mexican drug lord and leader of the criminal organization known as Los Zetas.  Considered a violent and dangerous criminal, he was one of Mexico's most-wanted drug lords until his arrest in July 2013. Próspero Morales (San Marcos, Guatemala, 1856 - Huehuetenango, 17 August 1898) was a Guatemalan lawyer who served as Secretary of Infrastructure, War and Public Instruction during José María Reina Barrios administration.  Two year after being in office, Morales married the well known Guatemalan teacher Natalia Górriz.  Morales resigned as Secretary on 5 March 1897 in order to run for president for the upcoming presidential elections; however, due to the failure of the Exposición Centroamericana and the severe economic crisis that Guatemala was undergoing at the time, due to the plummeting of coffee and silver international prices, general Reina Barrios suspended the elections and forcibly extended his tenure until 1902.  Morales then joined the revolution that was brewing in Quetzaltenango, but the rebels were defeated on 14 September 1897.  After Reina Barrios assassination on 8 February 1898, he unsuccessfully tried to overthrow interim president Manuel Estrada Cabrera–who also had served as Secretary under Reina Barrios–but was repelled by the forces of former president Manuel Lisandro Barillas. The infighting in Los Zetas referred to confrontations between two factions in that criminal organization, Mexico's most violent, one led by Heriberto Lazcano Lazcano, alias "El Lazca" and the other led by Miguel Treviño Morales, alias "Z-40".  The rumors of the split appeared in mid-2012, when public banners and music videos on the web alleged betrayals between the two leaders.  After the death of Lazcano it was confirmed that the leaders were not confronting each other, but rather that some men within Morales' faction did not want him as leader. Los Morales (Lit: "The Morales" / English: "Dynasty") and stylized onscreen as "Los Morales, lo que se hereda, se canta", is a Colombian biographical telenovela based on the life of the famous colombian singers father and son Kaleth and Miguel Morales and produced by Luis Alberto Restrepo for Caracol Televisión.  It is known in other countries as "La Dinastía" and stylized as "La Dinastía, cuando canta el corazón" and in English as "Dynasty, When the Heart Sings".  It stars Julio Meza, María Laura Quintero and Jerónimo Cantillo as the Morales family.  The series follows the problems of love of Miguel and Kaleth and its difficult situation to become known throughout Colombia as singers. José Treviño Morales is a Mexican former money launderer for Los Zetas, a Mexican criminal organization.  He is the brother of the former Zetas leaders Omar Treviño Morales (alias "Z-42") and Miguel Treviño Morales (alias "Z-40").  In 2008, Treviño funded a horserace operation in Oklahoma with money he made through money laundering.  Nonetheless, he was arrested by the FBI along with seven others in a horse-breeding ranch in Lexington, Oklahoma on 12 June 2012.  He was found guilty of money laundering on May 2013, and was sentenced to 20 years in prison by a U.S. federal court in September of that same year. Eduardo Almanza Morales (alias "El Gori II"") is a Mexican drug lord of Los Zetas.  In March 2009, Almanza Morales was listed by Procuraduría General de la República—Mexico's equivalent to an attorney general office in some English-speaking countries—as one of Mexico's 37 most wanted drug lords.  He had been linked to the introduction of illegal drugs into Mexico from Belize and Guatemala on behalf of the Gulf Cartel.  Some sources have reported that Eduardo Almanza Morales was killed by Mexican law enforcement during a shootout in December 2009.  However, as of 3 March 2013, he was still listed as wanted by the Mexican Procuraduría General de la República.  The Mexican government offers $15 million Mexican Pesos (approximately 1.2 million US dollars) for information leading to his capture. Mariana Treviño is a Mexican stage and screen actress from Monterrey.  She became known to a wider domestic audience through her role as Lupita in the popular jukebox musical "Mentiras", which she played in over a thousand performances.  Following the success of Mentiras, Treviño went on to appear in Mexican comedy films such as "No sé si cortarme las venas o dejármelas largas" (2013) and "Amor de Mis Amores" (2014).  As of 2015, she co-stars with Luis Gerardo Méndez in Netflix' first ever Spanish-language original production "Club de Cuervos".  Treviño received two nominations at the 59th Ariel Award for Best Supporting Actress for "La Vida Inmoral de la Pareja Ideal", and Best Actress in a Minor Role for "El Sueño del Mara'akame". William Morales (born February 7, 1950), also known as Willie Morales, Guillermo Morales, and William "No Hands" Morales, is an American bomb maker for Fuerzas Armadas de Liberación Nacional Puertorriqueña (FALN).  He was convicted in February 1979 for possession of explosives, and possession and transportation of explosives and a shotgun.  He escaped from Bellevue Hospital in May 1979 and subsequently fled to Mexico, where he was held by the authorities, before emigrating to Cuba in 1988.  He is on the FBI Most Wanted domestic terrorists list with a reward of $100,000 for information leading to his arrest. Dave Morales (born May 5, in El Paso, Texas, United States), is a nationally known on-air radio personality, DJ and independent producer.  Dave Morales has worked for some of the top rated radio stations in the United States, as an on-air personality, promoter, artist interviewer, and events specialist.  Some stations Morales has worked at include KPWR, KYLD, KHKS, KKPN, KKHH, KPTY, and KHMX.  Morales was known for being a radio show host on Mix 96.5, in Houston.  Dave Morales is well known for his widely heard interviews with famous musicians.  Some famous interviews Morales has hosted include Tokio Hotel, The Pussycat Dolls, Cesar Millan "The Dog Whisperer", Shine Down member Eric Bass, and Sarah, Duchess of York.  Morales spent the early part of his childhood in El Paso, Texas.  As a child he moved to Houston, where he graduated from Cypress Creek High School, and went on to Texas Tech University, to study broadcasting. Óscar Omar Treviño Morales (born January 26, 1974) is a convicted Mexican drug lord and former leader of Los Zetas, a criminal organization.  He was one of Mexico's most-wanted drug lords.  His brother is Miguel Treviño Morales, a former leader of the group.  The authorities believe he was the successor of his brother, who was arrested on July 15, 2013.
Answer: Z-40