text: By the late 1980s, in what would come to define his later ministry, Larson was often heard performing exorcisms of callers on the air. The subjects of Satanism and Satanic ritual abuse were frequent topics of discussion. Death metal performer Glen Benton of Deicide became a regular caller, as did Bob Guccione Jr., eldest son of Penthouse founder Bob Guccione and founder of the music magazine Spin. At one point during the 1980s, Guccione Jr. paid Larson to go on tour with American thrash metal band Slayer and write about it.
  Larson tried his hand at writing fiction. Dead Air (1991) was largely ghost-written by Lori Boespflug and Muriel Olson, according to Karen Stollznow. His later novels Abaddon (1993) and The Senator's Agenda (1995) both linked Satanic ritual abuse to political corruption; the latter was largely written by Larson and his second wife. However, a former vice president of Bob Larson Ministries, Lori Boespflug, said that much of Dead Air, though presented as Larson's work, is allegedly her own. Supporting these claims is a letter from Larson's lawyer that warns Larson of his "potential liability to Lori", anticipating that "the role Lori has played" would lead her to "demand recognition and/or profit participation" in respect to Dead Air and its sequels.