Pregnant Teen Strangled and Boyfriend Decapitated After Connecting with a Man on Craigslist for Sex
07/22/2014 AT 01:50 PM EDT
The police chief in Wyoming, a Grand Rapids suburb, said that 18-year-old Brooke Slocum was held captive before her death. Her body was found Thursday in the trunk of the suspect's car. She was eight months pregnant.
Chief James Carmody says her boyfriend, Charles Oppenneer, 25, was found decapitated in a park a day earlier. His head hasn't been found.
It's likely that Oppenneer died of some kind of head trauma, but that couldn't be determined without his head being found, police said.
Emails indicate that Slocum connected with the suspect, 31-year-old Brady Oestrike, through a Craigslist ad and arranged a sexual encounter where Oppenneer would be present, according to investigators.
Police got a search warrant for Oestrike's home, and he fled. He fatally shot himself after crashing his car, after which police found Slocum's body.
Carmody said it has been a "hellish environment" for officers as they investigated the various crime scenes, including Oestrike's home.
Investigators collected at least 400 items from Oestrike's home, including firearms, ammunition and knives. They also seized a number of electronics items and possessions from both victims.
Police said they plan to keep investigating to see if there were any other people involved in the killings.
On Monday evening, Slocum's family spoke publicly about their loss at a family-led news conference.
"Our family is not unlike the many of yours in that she was not the perfect teenager, and we were not the perfect parents or family," said Rod Knepper, Slocum's great-uncle, per mlive.com. "But everything was done out of love for each other and in an attempt to do what was best and to try and instill a sense of what is right and wrong."
Knepper made it clear the family warned Slocum about the dangers that potentially lurk online.
"Yes, Brooke had made previous mistakes within the world that is online, including those that led to her involvement [with Charles Oppenneer] in this situation," Knepper said. "Yes, the family tried to curtail, inform, protect and advise against the evils that this tragedy has brought forward."
"But God gave each of us free will, and that is something that no one can control," he added. "The secret part of Brooke's life that none of us knew about is a testament to that."