Question: What nationality were the killing squad who helped murder 100,000 people mainly from Vilnius?

Context paragraphs:
Demographics of Nepal: In the 2011 census, Nepal's population was approximately 26 million people with a population growth rate of 1.35% and a median age of 21.6 years.  In 2016, the female median age was approximately 25 years old and the male median age was approximately 22 years old.  Only 4.4% of the population is estimated to be more than 65 years old, comprising 681,252 females and 597,628 males.  61% of the population is between 15 and 64 years old, and 34.6% is younger than 14 years.  In 2011, the Birth rate is estimated to be 22.17 births per 1,000 people with an infant mortality rate of 46 deaths per 1,000 live births.  Compared to the infant mortality rate in 2006 of 48 deaths per 1000 live births, the 2011 IMR is a slight decrease within that 5 year period.  Infant mortality rate in Nepal is higher in rural regions at 44 deaths per 1000 live births, whereas in urban regions the IMR is lower at 40 deaths per 1000 live births.  This difference is due to a lack of delivery assistance services in rural communities compared to their urban counterparts who have better access to hospitals and neonatal clinics.  Life expectancy at birth is estimated to be 67.44 years for females and 64.94 years for males.  The mortality rate is estimated to be 681 deaths per 100,000 people.  Net migration rate is estimated to be 61 migrants per 100,000 people.  According to the 2011 census, 65.9% of the total population is literate.

2013 Assam floods: 2013 Assam floods were floods in the Indian state of Assam which were triggered by heavy rainfall at the end of June in neighboring Arunachal Pradesh state through Brahmaputra river and its tributaries.  These flood submerged 12 districts out of 27 in the state where more than 100,000 people affected.  The flood also affected Kaziranga National Park and Pobitora Wildlife Sanctuary where many animals have moved on to higher ground to save themselves from the flood.  The floods also affected some of the northern districts of Bangladesh where 100,000 people are suffering from a scarcity of food and pure drinking water.

Paneriai: Paneriai (Polish: "Ponary" , Yiddish: פאנאר‎ /Ponar) is a neighborhood of Vilnius, situated about 10 kilometres away from the city center.  It is the largest elderate in the Vilnius city municipality.  It is located on low forested hills, on the Vilnius-Warsaw road.  Paneriai was the site of the Ponary massacre, a mass killing of as many as 100,000 people from Vilnius and nearby towns and villages during World War II.

Rape in Belgium: In 2004, the incidence of rapes recorded by the police in Belgium was 28.4 per 100,000 people, according to data by UNODC; in 2008 it was 29.5 per 100,000 people.  Belgium has been reported as being one of the countries with the highest rate of rape.

2016 North Korean floods: The 2016 North Korean floods began in late-August 2016 as a consequence of Typhoon Lionrock, killing at least 525 people, and destroying more than 35,000 homes, leaving over 100,000 people homeless, mainly in the North Hamgyong Province as a result of the Tumen River, near the borders with China and Russia, breaking its banks, according to the United Nations Office for the Coordination of Humanitarian Affairs and Red Cross.

Ponary massacre: The Ponary massacre (Polish: "zbrodnia w Ponarach" ) was the mass murder of up to 100,000 people by German SD, SS and Lithuanian Nazi collaborators, such as the Ypatingasis būrys units,

Ypatingasis būrys: Ypatingasis būrys ("Special Squad") or Special SD and German Security Police Squad (Lithuanian: "Vokiečių Saugumo policijos ir SD ypatingasis būrys" , Polish: "Specjalny Oddział SD i Niemieckiej Policji Bezpieczeństwa" , also colloquially "strzelcy ponarscy" ("Ponary riflemen" in Polish) (1941–1944) was a Lithuanian killing squad of approximately 50 men, also called the "Lithuanian equivalent of Sonderkommando", operating in the Vilnius Region.  The unit, primarily composed of Lithuanian volunteers was formed by the German occupational government and was subordinate to Einsatzkommando 9 and later to Sicherheitsdienst (SD) and Sicherheitspolizei (Sipo).  There are different estimates regarding the size of the unit.  Polish historian Czesław Michalski estimates that it grew from base of 50 while Tadeusz Piotrowski asserts about that there were 100 volunteers at its onset.  According to Michalski, after its initial creation at various times hundreds of people were its members.  Arūnas Bubnys states that it never exceeded a core of forty or fifty men.  118 names are known, 20 of the members have been punished.  Together with German police the squad participated in the Ponary massacre, where some 70,000 Jews were murdered, along with estimated 20,000 Poles and 8,000 Russian POWs, many from nearby Vilnius.

List of cities in Uttar Pradesh by population: The Indian state of Uttar Pradesh borders with Nepal and the Indian states of Bihar, Jharkhand, Chhattisgarh, Madhya Pradesh, Rajasthan, Haryana, Uttarakhand and National Capital Territory of Delhi.  The Himalayas lies in the north of the state and the Deccan Plateau is at the south.  In between them, the river Ganges, Yamuna, Ghaghra flow eastwards.  Uttar Pradesh can be divided into two distinct regions, Southern hills and Gangetic plain.  Uttar Pradesh is divided into 75 districts under 18 divisions.  As of 2011, with an estimated population of 199,581,477.  Uttar Pradesh is the most populous state in India.  Uttar Pradesh occupies 6.88 percent of the India's land surface area but is home to 16.49 percent of the India's population.  As of 2011, 64 cities in the state had a population of over 100,000 people.  Kanpur is the largest city with 1,640 km2 area having an approximate population of over 3 million which comes under Kanpur Metropolitan Area.  The smallest city with a population over 100,000 people was Kakrala in Badaun district with a population of 100,080 people according to 2011 census figures.

Cancer survival rates: According to the latest numbers released by the United States Center for Disease Control and Prevention (CDC), cancer is the second leading cause of death in the United States, surpassed only by heart disease.  The CDC reports over half a million deaths from cancer in 2014, and the United States National Cancer Institute (NCI) reports 454.8 new cases of cancer per 100,000 people per year, with an estimate of 1,685,210 new cases of cancer diagnosed in 2016.  Between 2008 and 2012, the number of cancer deaths was 171.2 per 100,000 men and women per year.  Globally, the leading cause of cancer death in high income economies in 2015 was trachea, bronchus, and lung cancers (49.5 deaths per 100,000), followed by colon and rectum cancers (27.5 deaths per 100,000) and breast cancer (15.6 per 100,000).  Cancer is not a leading cause of death in low income economies, where the leading cause of death is communicable diseases.

Croatian New Zealanders: Croatian New Zealanders refers to New Zealand citizens of Croatian descent.  There are 2,550 people who declared their nationality as Croats in the 2006 New Zealand census.  The majority of these are located primarily in and around Auckland and Northland with small numbers in and around Canterbury and Southland.  It is estimated that over 100,000 people have Croatian ancestry.

Supporting paragraphs: Ypatingasis būrys Ponary massacre
Answer: Lithuanian