Working through complex emotions is one of the jobs of an artist. Indianapolis artist Jedediah Johnson’s solo exhibition “My Father’s Murder,” at Zephyr Gallery, is as heavy as you think it must be. The title’s event took place Sept. 24, 1984, when Johnson was a young child, and it is now told to viewers by way of photography, video and sculpture. “It is a challenging and thought-provoking project that exams a variety of topics, from the weight of familial history, childhood memory and notions of victimhood,” said Paula Katz, curator of the show and executive director of the Indianapolis Museum of Contemporary Art.