A 'serial killer profiler' has shared his theory about Sherri Papini's abduction.

A serial killer profiler has claimed that kidnapped Californian mother, Sherri Papini, could be lying about her abductors because she is “scared to death”.

The 34-year-old was abducted on November 2 while she was out jogging near her California home and was found before dawn, chained and beaten, 22 days later on the side of a highway.

Police have said they have no reason to disbelieve Sherri Papini’s story. Authorities are looking for two Hispanic women that were driving a dark-coloured SUV.

But profiler John Kelly told People the mother-of-two’s case “has serial rapist, serial killer all over it”.

"This is a sadistic situation, and she somehow was able to convince them to let her go,” Kelly said.

"She somehow got them to believe she would not squeal on them. It’s only by an act of God that they let her go.

"I have a hard time understanding that as sadistic as these [people] are — and I’ve hunted many of them — would let someone live.”

Papini's husband, Keith, said his wife had lived through "hell".

In a statement released to Good Morning America, he said his wife's nose was broken and that she was beaten, starved, and branded.

Kelly says the branding could have been done to “throw the case off”.

“It’s called staging,” he said.

“They’ve set up that it was two women, that they picked on you because you are this all-American girl, that they are Hispanic and upset with the political climate, and we will tattoo a message on you that corresponds.”

The serial killer profiler, who founded S.T.A.L.K. Inc., is convinced Papini would be able to identify her perpetrator.

“If they know where she lives, she will always worry,” he said.

The mother is now reunited with her husband and children Tyler, 4, and Violet, 2.

She is said to have left her home to recover from the abduction.