One year after Squamish, B.C., teenager Jodi Henrickson disappeared, her family is pleading to anyone with information to come forward and help them find closure.

Henrickson vanished in the early morning hours of June 20, 2009 after leaving a house party on Bowen Island. Search and rescue crews scoured the area, but found no sign of the 17-year-old.

The agony of not knowing where Henrickson is, and whether or not she is alive, has taken a toll on her parents. They were too upset to speak on Sunday, the anniversary of their daughter's disappearance, but their 21-year-old son Rob spoke on their behalf.

"It's just really depressing for them," he said. "It definitely is different every time I come home. It's just weird not to have Jodi around."

Police initially treated Henrickson's disappearance as a missing person's case, but in March officials announced they had classified it as a homicide.

The family is still holding out hope that Henrickson could be alive, and they believe someone out there has information that they haven't shared with police. Mounties agree, saying there are some who have refused to cooperate with authorities.

"We need somebody to come forward with something," Rob said. "Right now we don't have any closure. Without any new information, this isn't going to go anywhere."

Henrickson's ex-boyfriend Gavin Arnott is the last known person to see her alive. In August, he said he and Henrickson had been arguing the night of the party in the middle of the road between 4 a.m. and 5 a.m.

"I guess she walked off, I walked away without looking back," he said.

Arnott was convicted of assaulting Henrickson two weeks before the party, and was under a court order to keep away from her.

After Henrickson went missing, Arnott was interrogated by police for hours, then released. An intensive search of his father's property was conducted last July.

Anyone with information is asked to call police at 604-892-6100 or Crime Stoppers at 1-800-222-TIPS if they wish to remain anonymous.

With a report from CTV British Columbia's Bal Brach