Police are hunting the former business partner after a man who was found murdered in Siem Reap’s Kralanh district.
Deputy police chief Heu Kimsour said the suspect had been identified.
Roun Ra, 22, was killed on Tuesday night and his body found the next morning.
Mr Ra and the suspect were associates in a business which put protective film on motorcycles. There was bad blood between the two after Mr Ra decided to part ways.
“Our investigation of the crime scene led us to believe it was a revenge killing,” Mr Kimsour said. “The suspect used a knife to stab the victim’s chest four or five times and fled.”
“We are preparing a case and will ask the court to issue a warrant.”