The father of a 21-year-old Waianae man who was killed early Thursday morning in a car crash involving alcohol and excessive speed has a simple message for the community, especially young adults: “Don’t drink and drive. Call someone. Doesn’t matter what time. … Call someone.”

Those were the words of a grieving Troy Kahooilihala, whose son, Troy Jr., died in a single-vehicle crash near Keaau Beach Park in Makaha at about 2 a.m.

Police said a 24-year-old Waianae man driving a maroon four-door Toyota sedan was traveling eastbound on Farrington Highway with two of his good friends: a 19-year-old Waianae man seated in the front passenger seat and Kahooilihala Jr., in the rear passenger seat.

Lt. Andre Peters of the Honolulu Police Department’s Traffic Division estimates the vehicle was traveling over 100 mph when the car went off the roadway and onto a grassy shoulder. It tore through a small chain link fence and sheared the front end of a parked, unoccupied pickup truck.

Police said the sedan went airborne and onto a sand-and-grass embankment where it rolled several times before it came to a rest, more than 50 yards from the fence.

Kahooilihala was ejected from the vehicle. Police said he was discovered about 10 feet away from the sedan where responding paramedics pronounced him dead at the scene.

Both the driver and front-seat passenger were wearing seat belts; Kahooilihala Jr. was not.

Firefighters used tools to cut the car to extricate one of the injured men, who was pinned inside the mangled sedan, according to Honolulu Fire Department spokesman Capt. David Jenkins. Emergency Medical Services treated and transported the driver and the front-seat passenger in serious condition to a hospital.

Police said speed and alcohol were factors. The accident closed Farrington Highway for several hours.

At dawn Thursday broken car pieces were scattered across the embankment.

Dozens of family members and friends converged at the site, where a growing memorial was created with red ginger, lei and white latex balloons tied to a wooden utility pole.

Many comforted Kahooilihala’s father, who recalled the exact time, 3:37 a.m., when he woke up to pounding sounds on the door of his Makaha home. When he opened it, three girls told him his son was involved in a car accident.

Kahooilihala Jr., the oldest of three siblings, graduated from Waianae High School in 2014.

His cousin Cyana Ontai described him as a gentle giant, “a teddy bear.” He was smart, always smiling and loved to laugh, other family members said.

Kahooilihala’s aunt Susanna Ontai said, “He gave the best hugs. He gave the hugs with the hold. He didn’t release quickly.”

His father described his son as happy, outgoing and loved by everyone. “He had a big heart,” he said.

This is the years 34th traffic-related fatality on Oahu, compared with 41 at the same time last year. Police also said this is the third traffic fatality on Oahu this year that involved speed and alcohol.

An autopsy is expected to be performed to determine the exact cause of death.