Definition: 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].
Input: Two men accused in the robbery-murder of a 22-year-old University of Kentucky student pleaded not guilty in a Lexington court on Monday. Justin D. Smith, 18, and 20-year-old Efrain Diaz appeared briefly via video link from jail while their attorneys entered their pleas of not guilty in the death of Jonathan Krueger. The men are charged with murder and robbery in the fatal shooting of the young Ohio native in the early morning hours Friday. Smith is also charged with tampering with evidence, reports the Lexington Herald-Leader. Killers? Justin Smith (right) and Efrain Diaz (left) have been arrested and charged in the robbery and murder of University of Kentucky junior Jonathan KruegerJustin D. Smith, 18, and 20-year-old Efrain Diaz are accused of killing 22-year-old Ohio-native Jonathan Krueger 
 Question:_ was jerking as he struggled to breathe, Morgan said.

Jonathan Krueger