The Murder in the Sauna

Five men entered a sauna. Because it was a steam sauna, no one could see each other. Suddenly a scream was heard and the manager came running. After the steam was switched off, they found one of the men dead with a puddle of water beside him. The police were called and they had three suspects. The first suspect had a thermos, the second a magazine and the third a CD Walkman. The lead detective thought for a while and he caught the criminal. Who was it and how did he do it?

See result

It is the guy that had the thermos. He put a dagger made of ice in the thermos so it wouldn't melt. Then he killed the victim.
 

Find more Riddles
Created by Efigame Development