Background: Michael Brant Shermer was born on September 8, 1954 in Los Angeles. An only child, he was raised in Southern California, primarily in the La Canada Flintridge area. His parents divorced when he was four and later remarried, his mother to a man with three children, who became Shermer's step-sister and two step-brothers, and his father to a woman with whom he had two daughters, Shermer's half-sisters. His father died of a heart attack in 1986, and his mother of brain cancer in 2000.
Context: Shermer's master's degree in experimental psychology at the California State University, Fullerton, led to many after-class discussions with professors Bayard Brattstrom and Meg White at a local pub--The 301 Club--that went late into the night. These discussions, along with his studies in cultural anthropology, led him to question his religious beliefs. He abandoned his devout religious views, fueled by what he perceived to be the intolerance generated by the absolute morality he was taught in his religious studies; the hypocrisy in what many believers preached and what they practiced; and his growing awareness of other religious beliefs, and how they were determined by the temporal, geographic, and cultural circumstances in which their adherents were born. From this, Shermer came to conclude it is "obvious that God was made in our likeness and not the reverse." By midway through his graduate training, he removed the Christian silver ichthys medallion that he had been wearing around his neck for years. He completed his MA degree from the California State University in psychology in 1978.  The final step in Shermer's abandoning religion came when his college sweetheart, Maureen, was in an automobile accident that broke her back and rendered her paralyzed from the waist down. Shermer relates:  When I saw her at the Long Beach Medical Center ER, the full implications of what this meant for her begin to dawn on me. There, in the ER, day after dreary day, night after sleepless night, I took a knee and bowed my head and asked God to heal Maureen's broken back. I prayed with deepest sincerity. I cried out to God to overlook my doubts in the name of Maureen. I willingly suspended all disbelief. At that time and in that place, I was once again a believer. I believed because I wanted to believe that if there was any justice in the universe -- any at all -- this sweet, loving, smart, responsible, devoted, caring spirit did not deserve to be in a shattered body. A just and loving God who had the power to heal, would surely heal Maureen. He didn't. He didn't, I now believe, not because "God works in mysterious ways" or "He has a special plan for Maureen" -- the nauseatingly banal comforts believers sometimes offer in such trying and ultimately futile times -- but because there is no God.
Question: What did he do after his change in religion?

Answer: