The Honolulu medical examiner identified a man fatally stabbed in Waipahu on Sunday night as 42-year-old Marlo Basuel.
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Police said the stabbing happened at a house on Kahuanani Street at 9:45 p.m.
Investigators said Basuel was stabbed after an argument with another man during a party.
Neighbors said their street is usually quiet and that Sunday night's event were unusual.
"We're in Waipahu. You know, lots of loving families. At the same time, it can get a little crazy sometimes," said resident Kanani Stone.
Police said the man they're looking for has not been arrested.
The medical examiner said the victim died of blood loss due to stab wounds to the torso.