TWISTED Joao De Oliveira fled to Britain shortly after being released from a four-year jail sentence for killing a 30-year-old woman in Germany.

His horrific crime had shocked the northern city of Osnabruck, a cultural oasis in Lower Saxony and twinned with Derby.

The victim's body went missing for a month, before ending up at a waste paper reclamation plant, it can now be revealed.

Although the jury knew about the death, the trial judge ruled that many of the grisly details should be kept secret because of the risk of undue prejudice against De Oliveira.

The death was made public in court because it showed the defendant's predilection for killing, and was at odds with a comment calculated to mislead.

"I despise people who use violence against women," he said, when quizzed by defence barristers.

Depraved De Oliveira met up with Renate Jennerbach in an Osnabruck bar on December 20, 2000, when she was accompanied by her boyfriend.

But the couple quarrelled after a heavy drinking session and she was treated at hospital for a punch in the face.

De Oliveira seized his chance, befriending her and persuading her to go back to his flat for sex.

Around 4am a row erupted. Miss Jennerbach began hurling insults at him - and De Oliveira snapped.

He strangled her until she collapsed. But when she began moaning he suffocated her with a pillow and delivered blows to her jaw, eye socket and temple.

He then dumped her naked body in the bath and left "to drown his sorrows" in more alcohol at an all-night bar.

When he returned hours later, Miss Jennerbach was dead from choking on her own blood while unconscious.

Legal papers sent to England from the German police show that De Oliveira moved the body to his cellar where he wrapped it in a black woollen blanket and a tarpaulin.

On January 16, 2001, he played his last callous card, carrying the body to a recycling bin outside his home and covering it with newspapers.

But after the bin was transported to a reclamation plant, the decaying corpse was spotted lying among waste paper, waiting to be pulped.

De Oliveira was charged with murder but was eventually convicted of the lesser crime of causing "grievous bodily harm leading to a death".

He was sentenced on the basis of negligence rather than intentional killing - the equivalent of manslaughter in England.

De Oliveira was born in 1973 in Germany. His mother died in childbirth and five years later he moved with his grandparents to Portugal, where he was brought up.

Following his conviction, a German court made a 10-year deportation order against him.

So once released on licence, after serving two thirds of his sentence, he found a safe haven in England in June 2004.

A legal source said: "Under EEC rules anyone from member countries is free to move between them, whatever their background and crimes.

"Only when they present a threat to state security - such as through terrorism - can they be barred. Obviously, this is a major flaw in the system."

De Oliveira spent his time in Worcester trawling bars to pick up women, binge-drinking, working in factories - and pumping iron in the gym.

His former friend Sergio Santos said: "He was a very strong man who could lift many kilos."

On the night of December 8, 2006, De Oliveira met Angela Maggs for the first time in The Postal Order pub in Foregate Street.

It was a chance encounter that would lead to death.

The same night the couple had sex - and quickly Miss Maggs became pregnant. She later gave birth to a baby boy.

The relationship exposed the knife fiend's Jekyll and Hyde personality. "He kept changing like two different people, nice one minute and going off on one the next," Miss Maggs recalled. "He easily got angry, marching round the room."

She described how he suddenly flew into a rage after they returned from a night out, flinging her against a wall and then trying to throttle her. "He just flipped. It was such a shock."

De Oliveira ordered her to stay away from her cousin John Lloyd, whom she befriended after a family funeral. And he confessed to his landlord and friends that the frail decorator was "a problem".

As his romance with Miss Maggs cooled, jealous and possessive De Oliveira hatched his murder plan to get rid of the man who begged his cousin to abort the killer's baby.

A policeman first on the murder scene in Mr Lloyd's home was so horrified that he needed counselling to recover from the shock.

His colleague PC Nicola Roberts, who broke into the locked flat with him, said: "It was very traumatic. The way I dealt with it was to forget about it."

Home Office pathologist Dr Edmund Tapp noted down 68 stab wounds on the 5ft 9ins slimly-built victim and commented: "For a knife to go through the skull required considerable force."

Shown a bent eight-inch carving knife found in a washing-up bowl in Mr Lloyd's kitchen, he said it was consistent with the terrible injuries.

Arrogant De Oliveira tried to get his trial stopped by sacking his barrister and sending letters of complaint to the judge.

But he was told to re-engage his defence team, or defend himself. He eventually chose the former option.

Towards the end of his evidence, De Oliveira made an unsolicited but telling comment. Bizarrely, he said that a psychological examination in Germany had revealed a birth defect which made him do "certain things" when in the grip of alcohol.

Among a barrage of lies he dreamed up to try and dodge a conviction for a second killing, it was, perhaps, the only time he ever came close to telling the truth.

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