Lucas Allen Prassas, 20, was last seen at his apartment in the 2400 block of Highway 1 North in Wynne, Arkansas, on November 29, 2013. His grandparents, who raised him, became concerned when they had not heard from him; two days later his grandmother found his apartment door unlocked. Nothing in the unit appeared disturbed or stolen and his medicine, money, and clothes were left behind.

Lucas does not drive and there was no sign he had arranged transportation. His family reports he lived with autism, depression, and bipolar disorder and required medication, which he did not take with him. He had been released from the hospital about a week before he went missing, and his grandmother said he feared what would happen after she died; she wondered whether he had been trying to test living on his own or may have made plans with someone he met during the hospital stay. His Medicaid card and ID were not found in the home.

The Wynne Police Department is investigating. The family suggests he might be in a hospital, a mission, or a homeless shelter, possibly in Little Rock or Memphis, but his whereabouts remain unknown. If anyone knew Lucas, his routines, or saw him after November 29, 2013, can you share what you remember?