Frank Brown was 52 when he went missing from Jacksonville, Florida. He was last seen on June 3, 2015, while an inpatient at Baptist Medical Center. The hospital reportedly discharged him that evening, but his family, who were waiting outside the entrance, never saw him leave and received conflicting accounts from hospital staff about his discharge and whereabouts.

Brown had mental disabilities and seizures and required medication he likely did not have when he disappeared. He has not accessed any Social Security disability payments since June 2015, and his case is classified as endangered because of his medical needs and the unexplained circumstances of that night.

Anyone who saw Frank in Jacksonville on or after June 3, 2015, or who has information about his discharge from Baptist Medical Center is asked to come forward.