In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].

[EX Q]: The gunman who killed nine people last week at an Oregon college shot himself in front of his classmates after being wounded by two hero cops. Also revealed on Wednesday was that Umpqua Community College shooter Christopher Harper-Mercer, 26, was discharged from the Army after attempting to commit suicide. Harper-Mercer was discharged after one month of basic training at Fort Jackson, in South Carolina, in 2008. The Wall Street Journal reports that the Army wouldn't disclose details of the 2008 suicide attempt but that it indicates Harper-Mercer was deeply troubled long before he opened fire on his classmates last Thursday.Christopher Harper-Mercer, 26, shot himself in a classroom after being wounded by two hero cops who opened fireHarper-Mercer was discharged from the Army in 2008 for trying to commit suicideTodd Spingath was one of two officers to take down Oregon shooterHis partner and fellow vet, Joe Kaney, was identified earlier this weekThe pair have been hailed for preventing further potential devastationThey rushed into Umpqua Community College five minutes after alert 
 Question:At a Wednesday news conference, authorities said that two police officers in plainclothes were the first to confront Harper-_ after he began shooting at his morning writing class.
[EX A]: Mercer

[EX Q]: PARIS, France (CNN) -- Friends and relatives of the 216 passengers and 12 crew members on Air France Flight 447 are coming to terms with the news that wreckage from the flight was found in the Atlantic Ocean. Eithne Walls, who danced with Riverdance on Broadway, was aboard Air France flight 447. Among those on board were a member of Brazil's former royal family, a one-time performer with the Riverdance troupe, a Rio city official, executives from major international companies and an 11-year-old British schoolboy. Pedro Luis de Orleans e Braganca, 26, was a descendant of the family that ruled Brazil until 1889, a branch of the former Portuguese royal family. The Orleans and Braganca family considered him to be fourth in line to the throne. Pedro Luis was the oldest son of Prince Antonio and Princess Christine, the family said. He was the only member of the family on the flight, his relatives said.Member of Brazil's former royal family among 216 passengers on missing planeOne-time performer with Riverdance troupe, British schoolboy also aboardAir France flight disappeared over Atlantic after taking off from BrazilMajority of the presumed dead came from Brazil, France and Germany 
 Question:The passengers included 61 people from _, 58 Brazilians, 26 Germans and people from 29 other countries, Air France said.
[EX A]: France

[EX Q]: (CNN) An Ohio woman has been accused of live-streaming the rape of a 17-year-old friend on the Twitter-owned video app Periscope, according to Franklin County prosecutor Ron O'Brien. Marina Alexeevna Lonina, 18, is accused of using the app to live-stream video while an acquaintance, Raymond Boyd Gates, 29, allegedly committed the rape at a home in Columbus on February 27, the prosecutor said in a statement. The two were indicted Wednesday on multiple charges, including kidnapping, rape, sexual battery and pandering sexually oriented material involving a minor, the prosecutor said. In addition, Lonina was indicted on charges of illegal use of a minor in nude-oriented material or performance, the statement said. She also is accused of taking nude photographs of the young woman on February 26, according to the prosecutor.Marina Alexeevna Lonina accused of live-streaming rape on Periscope video appProsecutor: Raymond Boyd Gates allegedly raped 17-year-old at Columbus homeAttorney says Lonina maintains her innocence; Gates doesn't have lawyer 
 Question:Representatives for Twitter and _ declined to comment on the case.
[EX A]:
Periscope