Donna and Garry Reitler of Olmsted are still hopeful their daughter's 1993 disappearance will be solved.
The Reitler's continue to search for closure nearly 25 years after their 19-year-old daughter Tricia was reported missing from the Indiana Wesleyan University Campus.
They have another difficult anniversary coming up on March 29.
"It's difficult just to know that somebody has the answer that we desperately seek," said Donna Reitler.
"I think that's the hardest thing, cause I never thought we'd be here 25 years later, never."
Marion Indiana police still consider the case an open investigation.
Investigators have followed up on multiple leads, and found Tricia Reitler's clothing on campus property, but an arrest has never been made in the case.
Still, Garry Reitler believes police have done all that they could.
"They've really done as much as they could with the evidence and the leads that they had, and they've really done whatever we asked them to do," said Garry Reitler.
The Reitler's told News 5 a new memorial in Tricia's honor was just unveiled on the Indiana Wesleyan campus.
The Reitler's explained their Christian faith has carried them through the years, and it's still giving them hope for closure in their daughter's disappearance.
"We have an anniversary every year, and it doesn't get any easier," said Garry Reitler.
"So yes, my heart says yes, one day we will solve this, but I guess the longer it goes, the harder that is to hope for."