A murdererdubbed the ‘Frankenstein Killer’, whose real name is Allan Grimson, has been refused parole, the Mirror can reveal.
The notorious Navyserial killer, behind bars for killing two young men, has been linked by police to 20 other deaths. And he is strongly linked to the mysterious disappearanceof sailor Simon Parkes, 18, in December 1986. Both men served on the aircraft carrier HMS Illustrious, which had docked in Gibraltar. The teenager, from Bristol, was last seen drinking at the Horseshoe Pub on Main Street, Gibraltar, after the ship docked there. Simon never returned to his vessel and despite numerous searches over the years, the 18-year-old’s body has never been found and he is presumed to have been murdered.
Witnesses claim to have seen Grimson with Simon during the night on the stopover on December 12, 1986, during HMS Illustrious tour of the Far East. But evil Grimson was caged for the brutal murders of Nicholas Wright, 18, on December 12, 1987, and Sion Jenkins, 20, exactly 12 months later.
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He lured each victim back to his Portsmouth flat, where he battered them both to death with a baseball bat after they rejected his sexual advances. He then buried them in roadside graves.
While he had denied his murders had a sexual element, he told police that killing was ‘better than sex’ and admitted to scouring the ranks of trainees and cadets so he could dominate and kill the best looking ones. Speaking to detectives about his first killing, Grimson claimed the young man had spurned his attempted seduction, telling police how he punched the air in triumph and gave out a roar as he launched his brutal attack.
He told shocked detectives: “It was such a feeling. I have never had that feeling. It was a feeling of power, a good feeling. I felt good about it.” The bodies of the two men were not found for two years. But then, in 1999, Hampshire police re-examined their disappearances and questioned Grimson.

They had learned that Nicholas had complained to his parents, shortly before he went missing, that the fire instructor had been pestering him sexually. Almost immediately Grimson admitted murdering Nicholas, and led detectives to his remains, which had lain undiscovered in the undergrowth near a busy road in Hampshire. “There is one more body,” he then told the stunned officers.
They were led to another lonely spot, a few miles away, where Mr Jenkins’ body had been dumped. Detectives then began exploring the possibility he might have killed many more young men, looking into the disappearances of some 20 sailors, visiting ports around the world where he had been ashore while teaching on former naval flagship Illustrious and the Type 42 destroyer HMS Edinburgh.
Simon Parke’s mum Margaret has never given up hope Margaret has never given up hope of finding her son. She told The Mirror: “I know Grimson is up for parole but in my opinion he is a very dangerous man and should never be released.”
Today the parole board denied Grimson’s latest bid for freedom. A spokesman for the Parole Board said: “We can confirm that a panel of the Parole Board refused the release of Allan Grimson following a paper review. Parole Board decisions are solely focused on what risk a prisoner could represent to the public if released and whether that risk is manageable in the community. “
In the summary of the board’s decision it read: “After considering the circumstances of his offending, the progress made while in custody and the evidence presented in the dossier, the panel was not satisfied that release at this point would be safe for the protection of the public. The panel noted that there was no support in professional reports for Mr Grimson’s release and it concluded that he was not yet ready to be released. Mr Grimson will be eligible for another parole review in due course."
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