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DENVER — A Denver woman is asking for help finding her son’s lost cellphone. Thanks to a special app, they have a photo of the man who found it. They just don’t know who he is.

The app they used is called CM Locker for Android, but there are several similar ones available on both iPhone and Android platforms.

How it works

When the phone’s password is input wrong, the phone snaps a photo from the front-facing camera, which captures the user’s face. The app then emails the photo so you know who has it.

Heidi Whitehead’s son lost his phone last week. The Android device has the app installed and they have received two emails with photos of a man who appears to have found it.

“Hopefully, he’s trying to figure out how to get it back to its rightful owner. He probably has no idea it belongs to a teenager,” she said.

Looking for the guy in the photos

Whitehead posted the photos on Facebook. Her post has been shared more than 100 times. She is asking the community to help her identify the man to get her son’s phone back, no questions asked.

“My initial hope was that somebody would just recognize him and say oh hey I know that guy, he lives down the street or I work with him or whatever,” Whitehead said.

Whitehead said they have called the phone several times but no one answers. If you recognize the man in the photos, email ​