Mrs Luard was shot in a summerhouse in the middle of the wood at near Sevenoaks, Kent. Her husband was accused by some, and he later committed suicide in despair. Later it was suggested that murderer John Dickman, hanged for a shooting on a train in 1910, was the guilty party.
Known as the Green Bicycle Case as the victim was last seen with a man owning one. A green bicycle was found in a canal and its owner Ronald Light traced. He stood trial, but was found not guilty of murder.
Known as The Wallace Case. Julia's husband William Herbert Wallace was convicted, but this was quashed when he successfully appealed. Recent books have named a suspect.
In October 1967, the body of a solicitor was discovered in a shallow grave by the side of the Trent & Mersey Canal. 54-year-old Herbert Wilkinson, a lonely batchelor, allegedly with homosexual tendencies, who, seven months earlier, had been struck off by the Law Society because of problems with his practice in Middlewich.
An 18-year-old hitch-hiker who disappeared on Sunday March 8, 1970. Six days later the girl's body was discovered by a farmer in Square Wood, near Mobberley. She had been sexually assaulted and strangled.
In October 1970 Barbara Mayo set off from her London home to hitchhike north. Six days later the 24 year old's body was found in a wood by the north bound carriageway in view of Hardwick Hall. The teacher been raped and then strangled. Twenty years later, in 1990, detectives were able to confirm using DNA that Barbara's killer was the same man who raped and strangled 18-year-old Jackie Ansell-Lamb.
A 14-year-old girl was battered to death not far from her family home in Tamworth. A young soldier stationed at Whittington Barracks confessed to the murder and served 25 years in jail. However, he later claimed that his confession was a result of psychological problems he was experiencing at the time; there being no other evidence against him, his conviction was overturned by the Court of Appeal. The real killer remains unknown.
A 34-year-old legal secretary was savagely beaten in a churchyard, and later died of her wounds. The church groundskeeper Stephen Downing was convicted and served 27 years for the murder, but the verdict was eventually overturned on appeal. The case was re-investigated by police, but no further arrests were made.
The 11 year old girl, left her Rochdale home at midday on Sunday, 5 October 1975 on an errand for her mother, but never returned. Three days later her mutilated body was found on the moors just off the A672 in Ripponden, West Yorkshire. Tax clerk Stefan Kiszko was convicted of the killing, but cleared in 1992.
The Bridgewater Four were originally convicted in 1979, but they were acquitted in 1997. A possible suspect is Hubert Spencer, who was convicted of a shooting murder at a nearby farm a month later.
An estate agent aged 25 disappeared after she went to meet a "Mr Kipper". She was last see at 12:40 BST on 28 July 28 1986. So far her body has not been found.
A local roofer, Russell Bishop, was tried for the rape and strangulation of the two schoolgirls, but was acquitted. Bishop was convicted in 1990 for the kidnapping and attempted murder of a seven year old schoolgirl.
Married couple in their 50s who were on holiday in the area. They were found shot dead near a coastal cliff top. One theory is that they stumbled across the IRA smuggling weapons.
Nickell, an ex-model, was stabbed 42 times while walking on Wimbledon Common with her young son. A local man was brought to trial for the murder, but the case was quickly thrown out of court. In 2006Scotland Yard began questioning a convicted killer in Broadmoor Secure Mental Hospital whom they believe may be the true murderer.
Lawrence, an 18-year-old son of Jamaican parants, was attacked and stabbed to death by a gang of white youths. Numerous witnesses identified five individuals as the attackers, but failings (and possibly corruption) on the part of investigating officers have hampered all attempts to prosecute them.
Teenager, Lindsay Jo Rimer, lived with her parents at Cambridge Street, Hebden Bridge. She was a pupil at Calder High School. At around 10pm on Monday 7th November 1994 she left home to visit the local Spar Supermarket in Crown Street, Hebden Bridge, to buy cornflakes. On the way to the shop she visited the Trades Club in Holme Street. According to CCTV footage in the supermarket Lindsay paid for the cornflakes at 10.22pm. Five months later on Wednesday 12 April 1995, her body was recovered from the Rochdale Canal, approximately one mile upstream from Hebden Bridge town centre.
Aged 31, from Rochdale, Greater Manchester, died 24 hours after being left on the steps of a church by her killers, who abducted her when she returned to pick up belongings from her former home in Nechells, Birmingham. She suffered horrific burns and was found by a man who heard her cries as he walked past the churchyard on December 23, 1994. It was a bitterly cold evening but her clothes were still smouldering. A petrol can was found nearby. Ms Mertens was taken to hospital but died in the early hours of Christmas Eve.
Foster father Sion Jenkins was originally convicted of murder in 1998. This conviction was quashed in 2004 and a retrial was ordered. The first in retrial in 2005 and a second retrial in 2006 both ended when the juries were unable to reach a verdict. Mr Jenkins was formally acquitted.
Schoolgirl Kate Bushell was murdered as she walked a neighbour's dog a short distance from her home in Exwick, on the outskirts of Exeter. Kate, aged 14, set off from her home in Burrator Drive, at 4.30pm on Saturday 15 November 1997. When she failed to come home, her parents called the police. A search located her body in a field next to Exwick Lane at 7.35pm that evening. She had been brutally murdered.
Lyn Bryant was murdered as she was walking her dog along a country lane at Ruan High Lanes near Truro in Cornwall on Tuesday 20 October 1998. Her body was found at 2.40pm. She had been stabbed several times.
Amanda "Milly" Dowler, was 13 years-old when she was abducted from Walton-on-Thames on 21 March 2002. At 4.08pm a school friend waiting for a bus saw her walking along Station Avenue towards her home. This was the last confirmed sighting of her alive. Her body was discovered on 18 September 2002 by a couple picking mushrooms in Yateley Heath Woods, near Fleet in Hampshire.
Jenny Abbot was 15 years-old, she was last seen alive getting into a car just 100 yards from her house. Wearing cropped blue tracksuit bottoms, trainers and a baggy white top. She was on her way home from a gym club when she got into a blue transit van, with the number plate missing. Her body was discovered on saturday 6th of June 2004, 30 miles away left in a ditch. her body was battered and her hands tied behind her back. 4 days later a blue transit van that was believed to be the same van that abducted Jenny was spotted by CCTV in Birmingham.