A skull recovered in Michigan has been identified as that of a beheading victim who was killed, along with his pregnant girlfriend in 2014, after meeting a man off Craigslist in a sex-for-cash deal.
Authorities say the dead man, Charles Oppenneer, 25, was identified by his dental records.
Oppenneer’s skull was found on private property in northern Kent County, nearly five years after he was murdered.
Signs of trauma to the skull indicate Oppenneer was likely killed by a gunshot, Wyoming Department of Public Safety. It didn’t appear the skull had been left there recently, the press release said.
The skull was discovered by a farmer on March 24 in woods along a road in Alpine Township near the Kent-Ottawa county line, more than 17 miles away from where body had been found nearly five years earlier.

Oppenneer’s skull, showing gunshot trauma, was found more than 17 miles away from where his decapitated body had been found nearly five years earlier

Charles Oppenneer was killed when accompanying his girlfriend Brooke Slocum, 18, [photo], to meet Brady Oestrike, 31, after Slocum had agreed to have sex for cash. Slocum was eight months pregnant at the time 

Oppenneer’s decapitated body was found in woods near Gezon park in the Grand Rapids suburb of Wyoming on July 16, 2014.
He’d been killed by Brady Oestrike, 31, who had met up with Oppenneer on July 12 and his girlfriend Brooke Slocum, 18, who was eight months pregnant, to exchange sex for cash.
The three had corresponded via Craigslist, according to authorities and Oppenneer had accompanied Slocum to the park.
Slocum had posted a desperate message asking for $50 to buy medication. She agreed to meet and have sex with Oestrike in return for $120.

Police later found long guns and hand guns all over Oestrike’s Taft Avenue house. After a high-speed chase with officers he crashed into railings and then killed himself

Oestrike shut off the video system showing Slocum’s horrific ordeal around 1 p.m. on July 17. An autopsy report shows she died of strangulation.
Police later found long guns and hand guns all over Oestrike’s Taft Avenue house.
On the evening of July 17, 2014, Oestrike backed his car out of his driveway and was immediately chased down by police.
After a high-speed chase he crashed into railings and then killed himself.
Slocum’s body was found in the trunk of his car.
Her unborn daughter, who had been named Audi Lynn, also died.
Shortly after the murders, senior police officers described it as the ‘one of the worst ever.’
A special ‘crisis intervention stress management team’ was made available to officers trying to deal with the horrors they’d witnessed.
Greg Slocum, Brooke Slocum’s father said that he knew about the couple’s schemes and that his daughter was desperate to do anything her boyfriend insisted so that they would stay together to bring up their child.
Police reports show that just weeks before Slocum’s kidnap and murder, Oestrike had developed another relationship with a woman he met on Craigslist.

Depraved killer: Just weeks earlier, a woman who Oestrike [photo] similarly met on Craigslist escaped torturous conditions living in his home. She described being chained up in his basement

The woman said she had placed a personal ad seeking friendship and sex.
She moved in with Oestrike who she said drugged her, asked her to be his sex slave, and put guns to her head.
When Oestrike left for work, he would chain her by the neck. She said he kept a ‘sex room’ in the basement and was at times forced to sleep in a kennel if she didn’t ‘listen to him.’

  A skull found in Michigan on March 24, by a farmer is that of Charles Oppenneer [Photo], who was decapitated in 2014 during a cash-for-sex transaction involving his pregnant girlfriend Brooke Slocum

Pregnant and desperate Brook Slocum had posted a message on Craigslist asking for $50 to buy medication. She agreed to meet and have sex with Oestrike, [unbeknownst to her, a sadistic killer], in return for $120

She moved into a domestic-violence shelter but later moved back in with Oestrike who she described as having a sweet side and believed the two had a strong relationship which included sexual-type bondage role playing.
After been badly beaten and whipped she left, telling police about the assault but not bringing charges.
The woman also expressed concern that Oestrike had children’s books and sippy cups in his house despite there being no sign of any children.