The Hunger Games
After the bloodbath, Katniss recalls seeing the District 4 boy amongst those who are dead.
After the bloodbath and Katniss had just settled in for the night when she recalled seeing the male tribute from District 4 amongst the 11 dead tributes. She said "I didn't expect that one, normally all the Career Tributes survive the first day". Why did Cato, the District 2 male kill the District 4 male when he is a Career Tribute as well? Why didn't he kill the female tribute from District 4?