David Alex moved from Illinois to Maui in autumn 2016 and began working at an Office Max. His mother last spoke with him a few days after he arrived. The last confirmed sighting was November 8, 2016, when Maui Police Department officers spoke with him after a moped accident; he was not physically injured but his moped was damaged. He failed to show up for work and coworkers reported him missing.

In the days after his disappearance someone, possibly David, tried to buy a new cell phone but could not complete the purchase because of an incorrect password. There have been possible, unconfirmed sightings on Maui in the months and years since, and there is a belief he may be living among the homeless. Family worry that the moped accident may have caused a cognitive injury affecting his memory or ability to ask for help. He was described as 5 feet 8 inches, with brown hair and brown eyes; he speaks fluent Polish and is left-handed.

If anyone on Maui remembers seeing David around November 2016 or afterward, or has information about his whereabouts, please share what is known.