RESTON, VA (WJLA/CNN) - A 17-year-old boy is charged with murder for allegedly shooting Buckley Kuhn-Fricker and her husband, Scott.
"Buckley and Scott were uncomfortable with him," said Janet Kuhn, mother of the woman killed.
The couple said they had concerns about their 16-year-old daughter's boyfriend and his interests.
Kuhn said that her daughter thought the boyfriend was trying to influence the girl with white-supremacist ideas, the Washington Post reported. Kuhn-Fricker reportedly described the boy to friends as an "outspoken Neo Nazi."
The Frickers, parents to three kids, did what any concerned parent would - told the teens they couldn't see each other any more.
"They kept a tight eye on her, and they disapproved of all the time she spent with him, hours on the phone," Kuhn said.
Friday morning, Buckley's final post on Facebook was a quote that reads: "The only thing necessary for the triumph of evil is for good men to do nothing."
Hours later, there was an early morning rendezvous between the Frickers' teen daughter and the suspect, Kuhn said.
Police aren't identifying the suspect because of his age.
"She let (him) in. They spent an hour together approximately from 4 to 5, and Buckley and Scott heard a noise and somehow sensed something was up," Kuhn said.
Kuhn said the boyfriend shot the Frickers when they confronted him and then shot himself. He is in critical condition, the Washington Post reported.
The family, who were gathered at the home to celebrate Christmas, is still in shock and coming to terms with the senseless act.
Kuhn said she knows the couple would have no regrets in how they protected their daughter.
"I don't think there's anything else they could have done, but who could ever foresee anything this horrible?" Kuhn said.
Police have not said if the suspect will be charged as an adult.
The shooting remains under investigation.
Copyright 2017 WJLA via CNN. All rights reserved. Raycom News Network contributed to this report.