"I feel so sad, and I hate that actor that ruined this guy's career".
"It harmed him and it can not be undone", she said.
Unruh said her son tried to shift his body to remove Spacey's hand but was only momentarily successful. "She told him to run", Unruh said. He ran to his grandmother's house on Nantucket, and then called his mother, who was in Boston at the time.
"The climate in this country has changed now", she said. "Right now my son is anxious, but he's also confident that the time to act is now".
She said he had been "harmed" by the incident. "That was an appalling attempt to deflect attention away from what you really are: a sexual predator". "Thanks to the courageous women who have come forward with their accusations against Harvey Weinstein and other sexual abusers".
Heather Unruh detailed the alleged incident during a press conference in Boston on Wednesday with her lawyer Mitchell Garabedian, who is best known for representing the victims of the 2002 Boston archdiocese sex abuse scandal.
Garabedian said the civil claim against Spacey is within the civil and criminal statute of limitations.
Ms Unruh said embarrassment and fear meant her son did not inform authorities at the time, but that he had filed a police report following the tide of allegations against Harvey Weinstein last month.
Nantucket police said they couldn't confirm an investigation, because sexual assault reports are confidential.
Slide-to-unlock patent battle: Apple wins $120 million from Samsung
That amount excluded another $382 million in damages for allegations that Samsung copied Apple's packaging materials. One of the two long-running patent disputes between Samsung Electronics and Apple ended Monday after the U.S.
"I want to see Kevin Spacey go to jail", she said.
The writer also compared Spacey to the Dalai Lama, who likely "has done something he's ashamed of".
"Shame on you for what you did to my son", Unruh said at Wednesday's news conference. "Your actions are criminal".
85-year-old author and New York Times journalist Gay Talese, credited for launching literary journalism through inventive pieces like his groundbreaking Esquire article "Frank Sinatra Has a Cold", told Vanity Fair in an interview that he feels sorry for the former "House of Cards" star, and more shockingly, told the men accusing Spacey of sexual harassment or assault to "suck it up". Actor Anthony Rapp, the first to come forward, claimed that Mr Spacey had made unwanted advances on him when Mr Rapp was 14.
Kevin Spacey was officially removed from CBS' upcoming special celebrating the 50th anniversary of "The Carol Burnett Show". "I don't know how much she saw", the former news anchor said. "Time the dominoes fell", she tweeted on October 13, in a missive that has accumulated 3,800 retweets and more than 4,700 likes.
Spacey has not issued a response to any of the allegations beyond Rapp.
"I applaud your courage Actor Anthony Rapp @albinokid. As he says, it's always there and it continues to bother him", she said.
"I honestly do not remember the encounter, it would have been over 30 years ago", he said in a Twitter statement.