Two people were found dead inside a parking garage from apparent carbon monoxide poisoning, WABC reported.
The sources said they believed Hargrave had been paying the man to fix her vehicle by having sex with him.
Law enforcement sources told NBC Washington that a husband returned home and discovered the bodies of his 39-year-old wife and the 59-year-old man in a auto parked in his garage.
Johnson made the bad discovery after coming home from work Monday and smelling gas at the apartment complex in Newark, Nj., where he lived. It seems that they started getting freaky in the garage, while the engine of the auto was running, and they died before they even realized what was happening to them, People Magazine reports.
"As I tried to step to open the last garage door, I see the mechanic, he's laid out", Hargrave's husband, Kahali Johnson said.
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He said it smelled like automobile exhaust, and eventually, he made his way to the garage before finding the running vehicle and the two victims.
Family friend Kelly Mitchell said she couldn't get her head around Hargrave's death. "She was everything to me". Both the married woman and the mechanic were pronounced dead at the scene, and police have ruled both deaths as an accident. "I just want my mother back".
Johnson blamed the deaths on carbon monoxide poisoning.
Law enforcement did not confirm any other injuries as a result of the carbon monoxide, but residents of the apartment complex said they saw at least one person being taken away on a stretcher.