Ray Thomas was a detective with Desmond police.
Thomas reached out to Fox Mulder, giving him a description Jane Brody along with pictures and asked for his help. Later, he realized officer Robbins had just shown evidence to Mulder and ran out the door to catch him. Unbeknownst to him, it was actually Walter Skinner, who brushed off his questions and stated there was not anything to follow up on. Disappointed, Thomas went back to the building.