Holly Benson is a character introduced in Season Six, as the "whore" of The Doomsday Killer's plans. However, before "Professor Gellar" can kill her, Travis Marshall sets her free.
In Ricochet Rabbit, Travis, in an attempt to remedy his "mistake" of letting her go previously, tracked Holly to a boat owned by her boyfriend, Peter Grant (the "Ricochet Rabbit, sharing the same name as the episode's title). With the assistance of Steve and Beth Dorsey, Travis re-captured Holly and slashed her throat. Steve finished the job by stabbing her through the chest.