Van Sant was born in Louisville, Kentucky, the son of Betty (nee Seay) and Gus Green Van Sant, Sr; Gus's father was a clothing manufacturer and traveling salesman who rapidly worked his way into middle class prosperity, holding executive marketing positions that included being president of the White Stag Manufacturing Company's Apparel Operation. As a result of his father's job, the family moved continually during Van Sant's childhood. His paternal family is of partial Dutch origin; the name "Van Sant" is derived from the Dutch name "Van Zandt".

After spending time in Europe, Van Sant went to Los Angeles in 1976. He secured a job as a production assistant to writer/director Ken Shapiro, with whom he developed a few ideas, none of which came to fruition. In 1981, Van Sant made Alice in Hollywood, a film about a naive young actress who goes to Hollywood and abandons her ideals. It was never released. During this period, Van Sant began to spend time observing the denizens of the more down-and-out sections of Hollywood Boulevard. He became fascinated by the existence of this marginalized section of L.A.'s population, especially in context with the more ordinary, prosperous world that surrounded them. Van Sant would repeatedly focus his work on those existing on society's fringes, making his feature film directorial debut Mala Noche.  It was made two years after Van Sant went to New York to work in an advertising agency. He saved $20,000 during his tenure there, enabling him to finance the majority of his tale of doomed love between a gay liquor store clerk and a Mexican immigrant. The film, which was taken from Portland street writer Walt Curtis' semi-autobiographical novella, featured some of the director's hallmarks, notably an unfulfilled romanticism, a dry sense of the absurd, and the refusal to treat homosexuality as something deserving of judgment. Unlike many gay filmmakers, Van Sant--who had long been openly gay--declined to use same-sex relationships as fodder for overtly political statements, although such relationships would frequently appear in his films.  Shot in black-and-white, the film earned Van Sant almost overnight acclaim on the festival circuit, with the Los Angeles Times naming it the year's Best Independent Film. The film's success attracted Hollywood interest, and Van Sant was briefly courted by Universal; the courtship ended after Van Sant pitched a series of project ideas (including what would later become Drugstore Cowboy and My Own Private Idaho) that the studio declined to take interest in.  Van Sant moved back to Portland, Oregon, where he set up house and began giving life to the ideas rejected by Universal. He directed Drugstore Cowboy about four drug addicts robbing pharmacies to support their habit. The film met with great critical success and revived the career of Matt Dillon.

Using a quote from the above article, answer the following question: what did he do with ken?
assistant to writer/director Ken Shapiro, with whom he developed a few ideas, none of which came to fruition.