His van was found parked at the Pasco County airport, a location he frequented to buy planes, with the keys on the floor.
Prior to his disappearance, Lewis had reportedly bought a plane ticket to Costa Rica.
Since then, however, the sheriff revealed that the case has been left open and active, but with no persons of interest.
Don Lewis’ mysterious disappearance drew a lot of high-profile attention after he first went missing — just two months after filing a restraining order against Carole Baskin.