Following the announcement of John McAfee’s death in Spanish prison on Wednesday, his now-deleted Instagram account uploaded an image of a black letter “Q,” a rallying call for the conspiracy theory QAnon.

The image, which was posted less than an hour after the Spanish Justice Department confirmed McAfee’s death, caused many curious observers and conspiracy theory enthusiasts to question if the cryptic post held any significance or whether it was a benign ode to the late software entrepreneur’s eccentric personality.