Wyoming, Mi - Brooke Slocum was eight months pregnant when she arranged to meet 31-year-old Brady Oestrike.
Cops say Brooke intended to have sex with Oestrike while her boyfriend, Charles Oppenneer was present. Instead, Oestrike killed Oppenneer and cut off his head, which has yet to be found.
He held Slocum captive for several days before Wyoming, Michigan police began closing in. Oestrike ran from police but crashed his car and killed himself before being taken into custody.
The teenager's body was found in the trunk of the car. She had been strangled.
Slocum’s father Greg told WOOD-TV his daughter would, “meet men on Craigslist to make some money because her boyfriend was manipulative. She paid the ultimate price for it."
Police Chief James Carmody called the scene a "hellish environment" for those investigating the crime.