"Where she was found, how'd she get there, where did it happen, why did it happen," asked Karen Searle.

These are all questions that remain unanswered for the family of Deborah Underhill, who was beaten and bruised over much of her body and ultimately strangled to death before being found on the bank of the Tennessee River.

A year later, there are still no leads in the case, leaving police no closer to solving the murder.

"Just knowing that person is out there, not just because of what he did to Debbie. Has he done to this someone else or is he going to do it to someone else," asked Searle.

Searle is still puzzled as to why her sister was targeted in this violent crime.

"She was the light of the party, she could walk into a room and make everybody laugh because that's all she did was laugh," said Searle. "That's what makes me so angry because I know no one had a reason to do this."

The horrific memories were too much to bear for Searle, moving away just months after the murder.

"I don't want to go down town. I don't want to see pictures of downtown or the Tennessee River," said Searle. "For a while I can get busy and do other things, but then I get to thinking about it again. It makes ya angry."

All she wants are answers and is pleading for help in finding them.

"Somebody saw something," said Searle. "She would be trying to do whatever she could to hunt down who did this to one of her family members."

Searle says she is offering a small reward to whoever gives information that leads to the conviction of the killer.

If you have any information that could help in this case, you're asked to contact the Chattanooga Police Department.