Who is Rudy in the book thief NOT THE HUNGER GAMES!?

Rudy is Liesel's best friend. One of six Steiner children, Rudy is gallant and impetuous -- he is best known for painting his face black and running around a track imitating Jesse Owens. Rudy is motivated throughout the novel by his love for Liesel; at one point he retrieves Liesel's book from the icy cold river and asks her for a kiss. By the end of the novel, Liesel has come to love Rudy as well; Rudy dies in an air raid at the end of the novel, and Liesel kisses his corpse.