"I'm screaming at the top of my lungs," said Johnson. "He's pointing the gun at me and telling me to ‘Shut the (expletive) up before I shoot you.' So at that time I'm biting down on my lip and putting my head in the headrest of the vehicle. I'm just praying, 'Please don't kill me.'"
After the brutal attack, the man dropped her off in her neighborhood and ditched her car a couple blocks away.
Before leaving he told her if she spoke of the attack, he would come kill her.
Johnson does not understand how someone could violate another person and now wants to move out of the area.
She told 7 Action News she no longer feels safe in her own home.
"For women out there who think you're safe…you're not," said Johnson. "So just be careful because I'm at home shoveling by myself - something I do every winter."
This case is under investigation. No arrests have been made. Johnson described her attacker as a shorter man with a smaller build, unkempt with a scruffy beard.
If you have any information on this case or saw anything suspicious call Detroit Police Sex Crimes at (313) 596-1950.