Honolulu police have arrested a 30-year-old Waipahu man in connection with Thursday's fatal stabbing of a 21-year-old 'Aiea High School graduate.

Homicide investigators are trying to find a second suspect. Police say the suspect is not considered armed or dangerous.

Officers also confiscated the car that allegedly brought the attackers to the Waimanu scene of the stabbing. As of 3:45 p.m. yesterday, police had not questioned the 30-year-old nor had they searched the vehicle.

Investigators have not found the weapon, believed to be a 15-inch knife, police said.

Officers arrested the 30-year-old man at an Aniani Street address in Waipahu. Police did not say what role he may have played in the stabbing. As of 3:30 p.m. yesterday, he had not been charged.

Bill P. Refilong was stabbed to death in front of Star Karaoke bar at 98-020 Kamehameha Highway.

Police said Refilong was standing with a group of men in front of the bar at the Waimalu Shopping Center at about 2 a.m. Thursday when a red, four-door sedan pulled up.

Two men in the car came out and began stabbing Refilong, who had wounds to his neck, chest and back.

None of the individuals allegedly involved in the attack speak English, police said, and the use of interpreters has slowed the investigation and complicated the gathering of evidence.

Refilong, a 2001 graduate of 'Aiea High School, had been fishing in Alaska on a commercial boat based in Seattle since September, his family said. He returned home last month and was planning to go back to Seattle in January.

An autopsy determined Refilong died of a stab wound to the neck, according to the City Medical Examiner's office. He was pronounced dead at Kapi'olani Medical Center at Pali Momi at 2:40 a.m.

No knives were found at the scene, but a leather sheath for a 15-inch knife was recovered, police said.

Reach Peter Boylan at pboylan@honoluluadvertiser.com.