Who killed Renaldo in the Video Violence story in the book Almost Perfect Crimes?

In the story "Video Violence" from the book Almost Perfect Crimes, Renaldo is killed by his friend, who is driven by jealousy and a desire for revenge. The murder is a pivotal moment that highlights the darker themes of betrayal and the consequences of violent behavior influenced by media. The story ultimately explores how the lines between reality and fiction can blur, leading to tragic outcomes.