David Jonathan Allen, 36, went missing from Nikiski, Alaska, in spring 2005. He was last confirmed seen on March 27, 2005, by staff at the Central Peninsula General Hospital Emergency Department after disappearing from his home on Independence Street around March 26. Living alone, he was not reported missing until April 14.

On July 28, 2005, the blue 1984 Ford F-250 pickup he was known to be driving was found abandoned in a pull-out at Mile 52 of the Sterling Highway in Cooper Landing, a location some distance from his Nikiski home. The truck had been registered to his workplace, Willow Street Auto, and was not immediately linked to his disappearance. Extensive searches of the surrounding area produced no sign of him.

Allen had medical conditions of note: he was diabetic and had bipolar disorder, and reports indicate he had stopped taking his bipolar medication before he vanished. Those facts raised concern about possible disorientation, memory issues, or paranoid delusions around the time he disappeared. Does anyone who knew David or who was traveling the Sterling Highway in late March to July 2005 have information that could help locate him?