I’m a criminologist – serial killers lurk in 3 specific places, the hunting grounds, which they scour and which alert me

A CRIMINOLOGIST has exclusively revealed the three “hunting grounds” used by serial killers who sound the alarm for him.

Christopher Berry Dee, investigative criminologist and the world’s leading true crime writer, has published a number of books providing insight into serial killers.

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The Royal Marine’s former ‘Green Beret’ commando have taken on the world’s most notorious killers to see what makes them tick.

He discussed with The US Sun how killers throughout history have used the same hunting grounds to identify their prey.

Berry Dee linked killers’ use of the internet to incels finding a dark and toxic community online.

He said: “A lot of men [are] like serial killer John Edward Robinson, the first killer to use the internet for serial killing purposes.

” [They go] in chat rooms, especially as someone else, a businessman who lures lonely women back to him and kills them.”

Chat rooms, Snapchat, and dating apps like Grindr have all been used as hunting grounds by killers.

Berry Dee added: “People underestimate the internet. It becomes a hunting ground for predators.

“Whether it’s cheaters or men praying to women of lonely hearts… it goes way back.”

The criminologist explained that in Victorian and Edwardian Britain there were ‘Lonely Hearts’ columns in newspapers for singles looking for love or companionship.

Serial killer Harvey Carignan, known as “The Want-Ad Serial Killer,” died earlier this month.

He used lists to find women soliciting some sort of help so he could rape and murder them.

In the 1940s, Raymond Martinez Fernandez and Martha Jule Beck, also known as the Lonely Hearts Killers, were convicted of one murder but reportedly killed up to 20 people.

The couple identified their victims by responding to one-off ads in local newspapers.

They were executed at Sing Sing Correctional Facility in 1951.

Berry Dee said: “Actually, the M.Os are more or less the same as today.

“The internet is really just an extension of that, it hasn’t changed. It’s just the method of doing it is electronic now.”

“Dangerous place on the Internet,” warned the expert.

The criminologist has previously discussed the use of the internet by killers like Jeffrey Dahmer and Chance Seneca.

Using John Wayne Gacy as an example, he explained: “Gacy knew where to look.

“He knew where these weaker people are in these chat rooms.

“[Killers] have a hunting ground like an animal, like a lion or something, they know where the prey is or they know where the fish are swimming and that makes it easier for them to cast their nets because these people are like minded and he uses that as a has his bait.

“They know where their intended prey is swimming in shoals, they sniff it out and they will watch and they will wait and then they will select the weaker of the herd or the one who has left the group, the one who is in the rain to one Go and wait for a taxi.

“They are patient and they will strike and that’s it, they’re dead.”

In 2008, Berry Dee published Murder.com about how “evil roams the internet.”

The book “takes an unflinching look into the darkest corners of the World Wide Web, from cannibals ordering a human meal via email to mail-order brides whose quest for a better life ends in grisly murder.”

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