24-year-old Chelsie Berry and 28-year-old Jared Prier of Carl Junction, Missouri were hanging out with their friend last week, 30-year-old Nathan Meyer.  And Nathan injected himself with a pain killer called Dilaudid.

Unfortunately, he overdosed and DIED. Chelsie and Jared said they didn't want to call an ambulance or go to the hospital, because they were high on meth and Xanax.  So they came up with the brilliant plan to dump Nathan's body on the side of the road.

But before they dumped his body, Chelsie and Jared took a SELFIE with their friend's corpse.  Then Chelsie posted it on Facebook, after they dumped the body.

One of her friends forwarded the photo to the police, and they arrested Chelsie and Jared on Wednesday for abandonment of a corpse.

(The Smoking Gun