A man is found dead. When the investigation is done, he is found dead with a knife in his back. A chair sits beside him and the forensic team finds moisture around the body.

If he committed suicide, how did he do it?

Suicide Riddle

The man used an ice knife. The ice was capable of holding the knife pointing upwards and he dropped down on the chair with his back towards the knife. The moisture indicates the melting of ice.