Christine Heron was 15 years old in the spring of 1993 when she disappeared, and in over 30 years there has been no trace of her.

I did know before the night was over. She was dead, though.

A story of murder and heartbreak and investigative error.

He was 90% sure he was going to be convicted.

From CBC Podcasts, I'm David Rigen, and this is Someone knows something, season nine,

the Christine Herron case.

Available now.

The bench.

Hello, Richard. You don't know me. I am Karen. I was told that you gave a confession

for the murder of my sister, Denise Velasca.

In April of 2018, Karen Falasker wrote the first of what would be many emails to Richard Cottingham.

Cottingham had confessed to the murder of Karen's sister, Denise.

I read your confession, which frankly was lacking some important details.

Maybe you don't feel like you owe me anything, but from my heart,

I'm just asking for the straight-up truth

in regards to your role in her disappearance and death. Can you help me? If you did kill Denise,

maybe this will be a good chance for you to put something right. I've searched for answers

to what happened to Denise every day of my life for almost five decades.

This girl, Denise, was once at the heart of my whole world.

Anything you can tell me is greatly appreciated.

Please write back.

Karen.

...