A CRIME expert today warned the killer will strike again and again until he is caught. Ipswich-based criminology teacher Rebecca Allen told the Evening Star the maniac assumed to be responsible for the deaths of five prostitutes will carry on until he is stopped.

A CRIME expert today warned the killer will strike again and again until he is caught.

Ipswich-based criminology teacher Rebecca Allen told the Evening Star the maniac assumed to be responsible for the deaths of five prostitutes will carry on until he is stopped.

She said she was unsurprised at the shocking discovery yesterday afternoon of two further bodies dumped within a few hundred yards of each other near Levington.

Mrs Allen added: “I was surprised they were both together at the same place, but not surprised there were more girls found dead. It would be very unusual if he stopped now.

“In previous cases that has just not happened. I do not want to scaremonger but don't think after this series of crimes he will stop out of the blue.”

As observers remain divided on whether Ipswich is facing a serial killer or a spree killer, or even if the murders are the work of one killer it is now horrifying clear that evil is at large in Suffolk.

Five of an estimated 30-40 prostitutes in the town have died leaving a significantly reduced number of women to prey on. The question on many lips today is where will he strike next?

Mrs Allen said: “It all depends on his motive. It could be he has got something against prostitutes and he is enacting some sort of revenge killing.

“It is also possible the prostitutes are easy prey and they are the only women who are likely to get into a vehicle with a strange man.

“They are more vulnerable but at the moment we just do not know his motive and we won't until he is caught.”

Mrs Allen said there are a number of theories which could explain the shocking murders.

She said: “There are some that have had a bad experience with women or been rebuffed by a woman. The Yorkshire Ripper Peter Sutcliffe said he heard voices in his head telling him to kill prostitutes.

“But it could be something totally different. Police have said there is no sign of sexual assault and woman are sometimes killed after rape so they do not identify their attacker but this does not rule out lust killing.”

The disposal of the bodies will also tell psychological profilers more about the murderer.

Mrs Allen said: “Where the bodies have been left can say a number of different things. The first two bodies were almost hidden and I believe Tania Nichol was in fact underwater. Now he could be becoming more complacent or he could be beginning to enjoy the attention that killings are creating.

“Some serial killers enjoy the attention and others do not. It's too hard to tell at this stage.”

Mrs Allen said she could think of no historical parallel to what is becoming known as the Suffolk strangler.

She said: “This is unprecedented and no one can predict what will happen next.”