(AP) — The discovery of a body stashed in a shallow grave outside a man’s home in Mississippi has led to charges that he killed his former roommate.

News outlets report 38-year-old Michael Shane Guidry is charged with capital murder in the death of Grady DeBoard of Arkansas, whose body was found outside Guidry’s home last week. Guidry was initially arrested on unrelated credit card fraud charges. Southaven police Deputy Chief Mark Little says Guidry’s subsequent interview led authorities to DeBoard’s body.

Authorities say Guidry and DeBoard lived together before DeBoard disappeared. Other residents of the Southaven home told police they hadn’t seen DeBoard for months. Authorities didn’t immediately release the cause of his death.

It’s unclear if Guidry has a lawyer who can comment on his behalf.