His obituary in the San Francisco Chronicle reads, in part:

David Sullivan dropped out of high school to manage a rock band in Mexico City and hung out on a Sioux reservation with a medicine man named Crow Dog. He built military radar in Gaddhafi’s Libya and stared down a notorious Brazilian drug lord in the slums of Rio. And he castrated bulls in Bolivia. He was perhaps more well-known as a San Francisco private investigator with an expertise in infiltrating cults.

David Sullivan died suddenly last month, just a day after a profile about him was published in Harper’s. The author of the profile, as well as a former colleague of Sullivan’s, join Here & Now’s Robin Young.