Jurors convicted a 19-year-old of third-degree murder in connection with the overdose of an 18-year-old who was found unconscious in his east-central Minnesota home after downing fentanyl-laced oxycodone that was payment for a busted mailbox.

The Chisago County District Court jurors deliberated for about an hour before finding Alexander J. Menne, 19, of Lindstrom, guilty Friday in connection with the death of Cameron W. Johnson, of Wyoming, on Dec. 12, 2016.

Menne remains jailed ahead of sentencing on Feb. 7.

In juvenile court, Morgan K. Johnson, 17, of Center City, Minn., has been charged with the same offense.

Menne often provided illicit drugs to Johnson through the dark web, according to prosecutors.

On the day of his death, the prosecution alleged, Cameron Johnson sent a text message to someone he knew as “Bubbles.” It read: “I just snorted a tiny line and I am [expletive]-up dude ur gunna be mind blown by this ... it’s awesome and we can make so much ... money off of these,” charging documents said.

Cameron Johnson’s girlfriend was attempting to revive him in the basement bathroom of a home along Comfort Lake, when a police sergeant and medical personnel took over. He was declared dead less than 30 minutes later.

The girlfriend said she thought Johnson may have taken pills obtained from Menne, the criminal complaint against Menne read. She said Menne had dropped off fentanyl-laced oxycodone pills for Johnson in the family’s mailbox earlier in the day.

Menne would order the pills by the hundreds off the dark web and have Cameron Johnson sell them around the area, the girlfriend continued.

In a statement to police, Morgan Johnson said she and Menne drove into Cameron Johnson’s mailbox on Dec. 9 a few days earlier. The three made a deal that Cameron Johnson would fix the mailbox if Menne and Morgan Johnson would pay him in pills, authorities alleged.