n 1965, Heinecken began using transparent film to explore different kinds of juxtapositions. This early example, which depicts a child aiming a toy gun at a doll of John F. Kennedy in his rocking chair, uses a found image from an advertising supplement to a Los Angeles newspaper shortly after Kennedy’s assassination. Heinecken later noted that this advertisement “started this whole idea of using already produced material for the source of my ideas and my work.”