Frost was stabbed and died at a local hospital. He was a cinematic arts student at USC and was originally from Idaho.
Police arrested 24-year-old Travion Terrett Ford from Los Angeles in connection with the murder. Police also said they recovered a knife that they believe was the murder weapon.
"That's very comforting to know that he was found, and hopefully not harassing the community anymore," said Matt Caligiouri, a USC student.
"I think that tells you how much DPS (USC's Department of Public Safety) and LAPD worked together, and how they found someone. They said they would, and they found someone," said Daniel Zerunyan, another USC student.
Ford does not live in the area, but police said they are questioning a female acquaintance who lives in the area, which may explain why he was near USC at the time.
For students, Frost's death is a reminder that you can never be too careful.
"Coming to USC, I mean I love this school, but the neighborhood has never been all that great," said Candace Chan. "I've been trying to keep my guards up, not going out too late at night, and basically keeping safe."
Police are still unsure what provoked the fight between Ford and Frost. Ford is being held at the Men's Central Jail in downtown Los Angeles, and he will be charged with murder.