A man is dead. He is 35 years old. He was in prison.
He had a fight. Another man was in the fight. The police think it was bad.
The police caught another man. He is 30 years old. They think he did it. The fight started with words.
The man hit the other man. Police want to know why. The dead man was hurt.
He went to the hospital. He died there. Doctors will look to see why.
Police look at cameras. They talk to people. The man in jail stays there.
This is a big problem. Prison needs to be safe. Life in prison is hard.