The Latest on the Washington state shooting (all times local):

2:10 p.m.

The University of Washington on Sunday identified one of the three people fatally shot at a party of young adults in an upscale neighborhood as one of its students.

The school in a statement says Anna Bui died in the early Saturday shooting at a house in the Seattle suburb of Mukilteo.

She had been enrolled at the university's campus in nearby Bothell.

The school also identified the suspected shooter, Allen Ivanov, as another of its students at Bothell.

State troopers said they pulled over and arrested the fleeing 19-year-old suspect on an interstate more than 100 miles away following the early Saturday shooting.

In addition to the three people slain, another was wounded in Mukilteo.

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12:19 p.m.

Hundreds of young people lit candles and exchanged hugs in a high school parking lot as a small waterfront community north of Seattle mourned the loss of three people fatally shot at a party of young adults in an upscale neighborhood.

A vigil was held at Kamiak High School on Saturday night where people passed lit candles to one another. Another vigil was planned Sunday at a local church.

State troopers said they pulled over and arrested the fleeing 19-year-old suspect on an interstate more than 100 miles away following the early Saturday shooting. In addition to the three people slain, another was wounded in Mukilteo.

Susan Gemmer, the grandmother of one of the witnesses, said the gunman arrived with a rifle at the party of about 15 to 20 friends from Kamiak High — mostly recent graduates aged 18 to 20. The gunman walked through the house to the fire pit out back, where he shot two people. Those present knew the gunman, Gemmer said, and he and one of those shot had broken up last week.