The FBI in the past has identified individuals by the sequence number in which each individual has appeared on the list. Some individuals have even appeared twice, and often a sequence number was permanently assigned to an individual suspect who was soon caught, captured, or simply removed, before his or her appearance could be published on the publicly released list. In those cases, the public would see only gaps in the number sequence reported by the FBI. For convenient reference, the wanted suspect's sequence number and date of entry on the FBI list appear below, whenever possible.