The mystery woman seen with Vegas gunman Stephen Paddock days before the massacre has been identified, at least by profession — she’s a prostitute.

Investigators have not revealed the woman’s name, but told ABC News that she was a hooker.

Officials have yet to uncover Paddock’s motive in carting 24 weapons and thousands of rounds of ammo in suitcases into his suite at the Mandalay Bay last weekend.

Firing from his windows, he claimed nearly 60 lives and injured some 500 others at an outdoor concert Sunday night.

Paddock had earlier paid for his girlfriend, Marilou Danley, to travel to visit her family in the Philippines, and wired her $100,000 so she could buy a house there.

Investigators have confirmed that Danley had no idea he was plotting a mass shooting.

They also do not believe he had accomplices.

Whoever the mystery hooker might be, she was not believed to have been in his room in the hours before the shootings.

“He was the only shooter; I’m confident of that,” based on casino surveillance cameras, Las Vegas Metropolitan Police Department Undersheriff Kevin McMahill told NBC News on Friday.

“I’m also confident that there were no other people in the room leading up to this event,” McMahill said.