Inmates killed a convicted pedophile while behind bars at a federal detention prison.

Christian Maire, a 40-year-old, had been sentenced to 40 years in prison after the FBI discovered he was the "mastermind" of child exploitation and pornography ring.

Though his sentence was to ensure he faces the consequences of his crime, inmates at the prison decided the death penalty was the proper punishment.

After the attack, Maire was rushed to the hospital, where he was pronounced dead several hours later. According to a medical examiner, Maire died of multiple stabbing and blunt force on his head.

No details of the incident were released, but the officers said that Maire's death was being investigated as a homicide.

Maire's lawyer, Mark Kriger, told The Detroit News:

"It's a horrible tragedy, and it seems something like this should have been able to be avoided."

During Maire's sentencing at the U.S. District Court in Detroit, prosecutors described Maire as the "mastermind" of an "egregious crime syndicate" that coerced vulnerable girls to engage in sexual activities on the internet.

Assistant U.S. Attorney Kevin Mulcahy, requesting for a life sentence for Maire, said:

"They hunted girls. They lied to girls. They manipulated girls. ... And they did so repeatedly, for years, victimizing more than 100 girls, only a fraction of whom have been positively identified."

Maire was part of a gang called the "The Bored Group," a pedophile network. The group comprised of computer experts with depraved sexual desires for underage girls.

The gang pretended to be a group of teenagers on the internet to lure unsuspecting girls to private chats.

The U.S. Attorney's Office stated that these pedophiles often used lies, manipulation, and fake profiles, generally posing as teenage boys, to attract young girls into private video chat rooms.

Reports state that they'd ask girls as young as 10-years-old to strip and commit sex acts on camera, and then the predators would record the videos and distribute them to the members of the group.

Maire admitted to having committed the crimes and expressed remorse. However, he said that he wasn't the ringleader of the pedophile group.

During sentencing, he told the judge that he had "shattered so many lives."

Maire confessed:

"I never thought I could sink this low. I apologize to all of my victims. I took advantage of your youth and trust and put my own selfishness above your dignity."