These guys aren't who I thought they were. Jesus, they killed that family for a sack of rotten vegetables...”— Jaime's personal journal: entry 03
Trev was one of the raiders that took Jaime Palabras in when he went wandering looking for his dad at night. Jaime thought that he and his friends were just some travelers until Trev and his friends killed a family for a bag of rotten vegetables. When he and his friends ambushed a trade caravan he got killed by one of the caravan guards while his friends Tawny and Thor were killed by Jaime.
Trev is mentioned only in Fallout 3.