It's been nearly three years since Kyron Horman disappeared from a Portland school where his stepmother says she dropped him off.

An age-progression photo to show what he would look like now has been released in a poster from the National Center for Missing and Exploited Children.

The poster will get added publicity by being displayed on the Gordon Trucking fleet of trucks in Washington and Oregon. The Washington State Patrol is highlighting the latest addition to the Homeward Bound Program on Monday at the trucking company yard in Pacific.

No arrests have been made in Kyron's disappearance. His mother, Desiree Young, is suing the stepmother, Terri Horman, seeking a court order to force her to say what happened to him.

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Poster: http://bit.ly/Yt0vV6