A criminologist who's come face-to-face with some of the world's most notorious serial killers says a British woman is the 'most dangerous' person he's encountered.
Christopher Berry-Dee is an expert when it comes to analysing the psyche of murderers, wirth him having met with the likes of Ted Bundy, Rose West and the 'roadside strangler' Michael Ross.
But there's a woman who the criminologist says is the 'most dangerous'.
Berry-Dee, 76, says Joanna Dennehy is the most disturbing criminal he has met.
Dennehy, 41, killed three men and stabbed two others in 2013.
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Berry-Dee told The Sun: “She’s the most dangerous person I’ve ever, ever, ever come in contact with.
“She’s not actually a big person and the knife she used isn’t that big dagger she was pictured holding but a pocket knife measuring about five inches.
“To walk up to someone in the street like she did and stab someone in broad daylight time and time again the way she did, with blood pouring everywhere… that is just evil.”
Dennehy killed three men in Peterborough - Lukasz Slaboszewski, 31, housemate John Chapman, 56, and landlord Kevin Lee, 48.
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She then travelled 140 miles to Hereford where she attempted to kill two dog walkers - Robin Bereza, then 57, and John Rogers, 64.
Both walkers thankfully survived their injuries.
After Dennehy was jailed, she and Christopher began exchanging letters.
The criminologist continued: “Her letters were quite beautifully written and the spelling was perfect, flawless really.
“One of the detectives involved said to me, ‘You know she was hotwired to become a lawyer or something like that before she went off the rails’.
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“I said in a letter, ‘You know people have been saying you’ve been involved in drugs'. The letter that came back was just whew. I had really pissed her off.
“The strange thing is that Dennehy had a really good start in life until she got involved with fairground workers and alcoholics and drink and drugs. I think it frazzled her brain.
“She probably looked back on her life and thought she’d messed everything up and hated everyone, especially men.
“She was so cold. She had two kids and never touched them when they were born, she never suckled them. She never kissed them. She didn’t want anything to do with them.
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“She treated men like dirt, using them. That’s a very dangerous woman.”
Dennehy is one of only four women in the UK to receive a whole life order. The other three are Rose West, Myra Hindley and Lucy Letby.
Judge Mr Justice Spencer presiding over her Old Bailey trial said as he sentenced her: "Within the space of ten days you murdered three men in cold blood. Although you pleaded guilty, you've made it quite clear you have no remorse."
As Dennehy laughed and smirked, he added: "You are a cruel, calculating, selfish and manipulative serial killer."
Lucy Devine