Beheading them in front of everyone

"Move aside. I need to take them to the center of the camp, where everyone can see what will happen if someone dares to go against me.", Liu Feng said.

"But... killing them?", Amelia said with a low voice. Around them, more and more students started gathering to view this spectacle. 

"They have committed an offense that cannot be forgiven because of their greed. There is nothing else to say about it. I shall present this case to my father, and he will be delivering the final verdict. With the three parties involved being of Aegonian descent, the king shall have the final say.", Liu Feng said loudly so that every one there could hear him.

All the students fell into discussion. Liu Feng nodded as he continued to walk past Amelia. The scene itself was quite funny. Looking from far, it was like three people were walking hand in hand. Only when coming nearer, could anyone see that Liu Feng was holding the two students by their neck, and that they were choking.