JAMM AQUINO / JAQUINO@STARBULLETIN.COM This watermelon had several slashes in the kitchen of the unit at 1520 Hooli Circle in Pearl City, where a woman was reportedly stabbed to death in her rented unit early yesterday morning.

Stabbing kills Pearl City woman

>> A pregnant woman and two on Lanai die in separate incidents
>> Police investigate deaths in 3 incidents

Four people and an unborn child died in three separate incidents this weekend. At least two of the cases involved a domestic dispute.

In Pearl City, police arrested the boyfriend of a woman who was stabbed to death in her kitchen early yesterday morning. Honolulu police are also investigating the death of a pregnant woman who died after she fell or was ejected out of a moving car in Punaluu after an argument Friday night.

The suspect in the Pearl City case turned himself in to the Pearl City police station at about 4 a.m. yesterday morning and confessed to stabbing his girlfriend and slitting her throat with a kitchen knife, police said.

The killings happened while the woman's 5-year-old child and elderly father were at home, neighbors said.

The suspect, a 39-year-old Waipahu man, took officers to 1520 Hooli Circle, where they discovered 39-year-old Zenaida Dumaslan's body in a pool of blood on her kitchen floor.

Dumaslan's landlord, Harold Ishigo, said her father had just arrived from the Philippines last week.

Ishigo said, "The little boy told police, 'Uncle did it,' and you know in local talk that could mean her boyfriend."

Court records show Zenaida Dumaslan filed a temporary restraining order against her boyfriend in October 2004.

Mary Ann Dumaslan, the sister-in-law of the victim, said the suspect was at a family party just before the killings and drank some beer before leaving at 11:30 p.m. Friday night.

Ishigo said he heard a persistent shaking of the side gate that leads to Dumaslan's kitchen and at around 2:30 a.m. yesterday he heard a voice yell "stop it" and the noise stopped. He said he did not hear any yelling or screaming.

Police said the suspect cleaned himself up before driving himself to the police station.

Dumaslan's sister-in-law said she did not know if the couple was having any problems.

"She was so quiet, if she had a problem, she would never talk about it," Mary Ann Dumaslan said. "I just saw her last night; I can't imagine she passed away."

Neighbors said they have heard arguments in the house over the last few weeks. They said Dumaslan just moved in to the neighborhood at the beginning of the week.

"I knew something was wrong because they moved their things in here but were hardly ever here," Ishigo said.

Relatives and co-workers said Dumaslan was a teacher's aide for Waipahu High School's special education program for less than a year.

"She was very committed to her job," the school's principal, Patricia Pedersen, said.

Dumaslan moved to Hawaii from the Philippines in June 2001 and still had three daughters there. She was supposed to have a party to welcome her father today, but instead her father and son will be mourning her death at her sister-in-law's home.

The suspect was taken to a hospital and later to the main station's holding cell for investigation of second-degree murder.

In the Punaluu case, police said at about around 8:25 p.m. Friday, a pregnant 28-year-old woman and her boyfriend had been arguing in a car heading northbound on Kamehameha Highway at about 35 to 40 mph when the woman became distraught, opened the passenger door and landed on a grassy area fronting 53-627 Kamehameha Highway.

They said witnesses and the man driving the car immediately stopped to render aid. The victim had no pulse and was not breathing when police officers arrived, so they administered CPR.

She was taken by ambulance to Kahuku Hospital and later flown by helicopter to the Queen's Medical Center in critical condition.

Police said her condition deteriorated overnight and she was placed on life-support. She died at the hospital around 5:30 a.m., said Bryan Cheplic, a Honolulu Emergency Medical Services Department spokesman. Cheplic said the fetus did not survive.

Police have not made any arrests.

The Honolulu Police Department's Traffic Division handed the case over to the homicide detail but did not say if a determination had been made on how the case will be classified.

Police contra-flowed traffic in the Kahuku bound direction on a quarter-mile stretch of Kamehameha Highway about a quarter-mile north of Pat's at Punaluu for about an hour while they investigated.

Maui detectives have not released many details about what they call a murder-suicide on Lanai. Police found the bodies of a 15-year-old girl and a 24-year-old man during a search yesterday for the missing girl and man about a half-mile from the Lanai police station.

Their names are being withheld pending notification of family members.