Emmanuel Hosier, 20, was last seen in Delta Junction, Alaska, on July 8, 2012. Known to some by his middle name, Martin, he failed to be heard from afterward and his family and friends were unable to contact him.

On July 9, 2012, Emmanuel’s car was found abandoned at a bluff overlooking the Tanana River. He was familiar with that area and with climbing the nearby cliffs and the adjacent bridge. Searches of the bluff, riverbanks and surrounding terrain by law enforcement and community members produced no sign of him.

The Alaska State Troopers opened an investigation that remains active but has not produced a definitive outcome. Does anyone who knew Emmanuel, or who was in the Delta Junction area in July 2012, have information about his last known movements?