Question: The terrorist, Valerio Morucci, was a member of which organization that was responsible for numerous violent incidents during the "Years of Lead"?

Context paragraphs:
Violence in Pakistan 2006–09: This is a list of violent incidents in Pakistan from 2006 to 2009.  Violence increased in 2006, in part because the US/NATO strategy from 2005 of attacking the Taliban in their stronghold in South Afghanistan (including Helmand), lead to incidents on the Pakistani side of the border.

Red Brigades: The Red Brigades (Italian: "Brigate Rosse" ] , often abbreviated "BR") was a left-wing paramilitary organization, based in Italy, responsible for numerous violent incidents, including assassinations, kidnapping and robberies during the so-called "Years of Lead".

List of terrorist incidents in London: This is a list of incidents in London that have been labelled as "terrorism".  It includes various bomb attacks and other politically driven violent incidents.

Seikijuku: Seikijuku (正氣塾 , "Sane Thinkers School") is a right-wing Japanese imperialist group based in Nagasaki Prefecture, founded in 1981.  The group was responsible for a number of violent incidents, including the 1990 near-fatal shooting of the mayor of Nagasaki Hitoshi Motoshima who stated that Emperor Hirohito was responsible for the war.

Potere Operaio: Potere Operaio ("Workers' Power") was a radical left-wing Italian political group, active between 1968 and 1973.  (It shouldn't be confused with "Potere Operaio Pisano" which was one of the components of a competing "revolutionary" group, Lotta Continua.)  Among the group's leaders were Antonio ('Toni') Negri, Nanni Balestrini, Franco Piperno, Oreste Scalzone and Valerio Morucci, who led its clandestine armed wing.  It was part of the "workerist" movement ("operaismo"), leading to the later development of the Autonomist movement.

Saint-Louis, New Caledonia: Saint-Louis is a part of the village Le Mont-Dore.  It is located in the extended territory of Nouméa.  Saint-Louis is well known for numerous violent incidents among Melanesians and Wallisians since 2002.

Anti-Jewish violence in Poland, 1944–46: The anti-Jewish violence in Poland from 1944 to 1946 refers to a series of violent incidents in Poland that immediately followed the end of World War II in Europe and influenced the postwar history of the Jews as well as Polish-Jewish relations.  The exact number of Jewish victims is a subject of debate with 327 documented cases, and the range, estimated by different writers, from 1,000 to 2,000 (an undocumented minority view).  Jews constituted between 2% and 3% of the total number of victims of postwar violence in the country, including the Polish Jews who managed to escape the Holocaust on territories of Poland annexed by the Soviet Union.  The incidents ranged from individual attacks to pogroms. Reports of political repressions by the communist forces in Poland and the wave of political murders by the security forces under Soviet control were mounting.  The United States ambassador to Poland, Arthur Bliss Lane, was troubled by the mass arrests of Polish non-communists, and their terrorization by the security police.  The wave of state-sponsored terror and large-scale deportations was followed by the nationalization decree of January 1946.  In response to his protests, Bierut told Lane to "mind its own business."

Violent Gang and Terrorist Organization File: The NCIC Violent Gang and Terrorist Organization File (VGTOF) was designed to provide identifying information about violent criminal gangs and terrorist organizations and their members to a wide variety of law enforcement personnel.  This information warns law enforcement officers of the potential danger posed by violent individuals and to promote the exchange of information about these organizations and members to facilitate criminal investigations.  The Violent Gang and Terrorist Organization File was implemented in December 1994.  It is run by the National Criminal Information Center (NCIC).

Ethnic clashes of Târgu Mureș: The ethnic clashes of Târgu Mureș (also called "Black March") refer to violent incidents between the Romanian and Hungarian ethnic groups in Transylvania, Romania in the early nineties.  These clashes were the bloodiest inter-ethnic incidents of the post-communist era in Transylvania.  Târgu Mureș (Hungarian: "Marosvásárhely") is a Romanian town, with an ethnically mixed population that was almost equally distributed between Romanians and Hungarians after the fall of the communist regime in December 1989.  It has been an important cultural and political center for the Hungarian minority in Transylvania.

Valerio Morucci: Valerio Morucci (born 22 March 1949) is an Italian former terrorist, who was a member of the Red Brigades and who took part in the kidnapping and assassination of Aldo Moro in 1978.

Supporting paragraphs: Valerio Morucci Red Brigades
Answer: The Red Brigades