DENVER -- Drive by Clement Park and it's a beautiful sight. But look closer and you'll realize there's much more here than what meets the eyes.
"It was a hammer attack in Aurora in 1984," Constance Bennett said.
Bennett is one of the 125 Coloradans who gathered Sunday afternoon to remember loved ones who were murdered by killers who were never caught. Her son and his family were brutally attacked in their home by a suspected serial killer.
"I like to still be out there and not be forgotten," Bennett said.
Bernice Abeyta doesn't know what happened to her 7-month-old.
"It's very hard to go on year after year," she said.
Christopher vanished 29 years ago. Abeyta now clings to a photograph of what he might look like today.
"When I first saw this one, I just felt close to it," Abeyta said. "I just felt that's how he would look. ... Twenty-nine years is a long time and you're getting older and you know you're facing death, so you get a little more desperate."
Colorado law enforcement is trying to crack 1,900 cold cases that have happened since 1970. For man, the memorial walk was a chance to not only make sure their loved ones aren't forgotten but also to meet with police.
"Some of the families don't meet with their detectives at all and this gives them a more comfortable place to meet instead of at a police station," walk oranizer Tina Terry said.
And it's also a place to find support from others living the same nightmare.
"You go on with your life, but it's not the same as it once was and it never will be," Abeyta said. "You've lost a part of your heart."
Abeyta still imagines the day when she'll meet her missing son.
"Everyday of my life I think about it," she said. "I think of the time I'll meet up with again and what I'll say and what I'll do."
Hope that she'll one day find answers to the questions no mother should have to ask.