At age 13, in mid-1965, he wrote and drew stories featuring the Legion of Superheroes, and sent them in to DC Comics. On February 10, 1966, he received a phone call from Mort Weisinger, who wanted to purchase the stories Shooter had sent, and commissioned Shooter to write Supergirl and Superman stories. Weisinger eventually offered Shooter a regular position on "Legion", and wanted Shooter to come to New York to spend a couple of days in his office. Shooter, who was 14 and lived in Pittsburgh, had to wait until school was in recess, after which he went to New York with his mother, spurred in part by the need to support his financially struggling parents.