Elaine Tanner (played by Marjorie Lovett) was a woman in Pittsburgh whose son, Albert Tanner, was killed in a car accident. However, Albert had the ability to perform spectacular regeneration and lived under the name "Leonard Betts." After Betts murdered Michelle Wilkes, it became clear to Mulder and Scully that Tanner was protecting her son and his ability. To feed his need for cancerous tissue, she had him remove a growth that would sustain him long enough to evade pursuit. Tanner was brought to the hospital, but Betts was killed by Agent Scully.