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Osana Futi, left, plays in a game between Newark Memorial and James Logan on Nov. 4, 2011. (Courtesy of Tony Rotundo/Athletesarewarriors.com)

A star Newark Memorial High running back and linebacker was stabbed to death Saturday night at a party in Fremont, his coach confirmed Sunday.

Osana Futi, 18, was rushed to a hospital after being found with stab wounds near Hyde Park and Yellowstone Park drives around 11:20 p.m., said the police and Newark Memorial Athletic Director Rich Swift. Futi, a senior, was pronounced dead about 1:20 a.m. Sunday at the hospital.

Fremont police arrested one man Sunday night on suspicion of homicide and three male juveniles as accessories to the crime, said Sgt. Jeff Campbell. Detectives were interviewing them late Sunday and additional details were not available.

Officers responded to the area after receiving complaints about a large party and reports of gunshots, said Fremont police Sgt. Curt Codey.

It wasn't immediately clear what may have sparked the violence.

Swift described Futi as a good player and a good person, whose loss was tragic both personally and as a sign of violent times everywhere.

"I've got a long history with his family," Swift said. "I coached his uncles, his cousins, so this is particularly hard for me personally. He's the eighth one of the lineage that I've coached."

Futi was named the Rob Johnson Defensive Player of the Year in 2011 in the Mission Valley Athletic League, and was a two-time all-league first-teamer as linebacker, Swift said. Futi was also on the Bay Area News Group's All-East Bay team, as a second-team selection at linebacker.

"He was a very good player and he was a good guy," Swift said. "I guess this lends credence to bad things happen to good people."

Swift added, "Turn on the news any day and there's some young person getting killed somewhere for no reason. That's the frustrating thing about this whole thing. It doesn't matter where. This is happening everywhere. And it's just tragic."

On Sunday, dozens of people shared their grief on Twitter, describing Futi as a young man "with a lot going for him," who was planning to graduate this year and make his mother proud.

"God needed a fullback to run things in heaven ... and he got one of the best," wrote one Twitter user.

Futi's life had seen tragedy and turbulence in recent years. He was expelled from Newark Memorial in March 2011, just four months after the slaying of his friend Justice Afoa. The Newark Unified trustees voted to kick Futi out of school on allegations he'd threatened the life of a student who had mocked the death of 17-year-old Afoa.

However, Futi's expulsion was later rescinded and he returned to Newark Memorial, said trustee Charlie Mensinger, who said he could not elaborate due to privacy policies.

Anyone with information about the killing may call Fremont police at 510-790-6800. Futi's slaying was the second this year in Fremont.

Staff writers Chris De Benedetti and Jimmy Durkin contributed to the reporting. Contact Joshua Melvin at 650-348-4335 and Sean Maher at 925-779-7189. Follow them at Twitter.com/melvinreport or Twitter.com/oneseanmaher, respectively.