HONOLULU -- Excessive speed and alcohol are factors in a collision that killed five people over the weekend on the Big Island, according to National Park Service officials.

The three-car crash on Friday night near the entrance to Volcanoes National Park in Hilo killed a relative of a state legislator. The impact also left one man critically injured.

A 2005 Porsche SUV was traveling in the Ka'u direction when it collided with two cars heading toward Hilo.

The driver and two passengers in the SUV were killed. They have been identified as Samuel Furtado, 55, of Volcano; Loretta Rafferty, 46, of Puna; and Lucia Clearwater, 60.

The two victims in a Chrysler convertible rental car are Candice Chisholm, 32; and Owen Romaine, 33, of Vancouver, British Columbia, Canada.

Furtado is the cousin of state Rep. Beverley Harbin. He retired from construction and had plans to build a home in Las Vegas, where his daughter is going to school at the University of Nevada at Las Vegas.

Harbin is on the Big Island visiting family and described her cousin as a generous man and a good father.

"We're all kind of in a state of shock. Everything is completely upside down right now. Fortunately, he did speak with his daughter earlier in the morning. I did see him in the afternoon," Harbin said.

Tony Gross and Daniel Fisher were in the third car.

Fisher walked away from the crash but Gross was flown to the Queens Medical Center in critical condition.

Officials scheduled autopsies for Monday on all five victims. Anyone with information is asked to call park dispatch at 985-6170.