Peter Tobin, who has been convicted of the murder of teenager Dinah McNicol, was already serving sentences for the murder of two other women.
Tobin's life has been marked by violence and sexual offences, and inspired Operation Anagram - a UK-wide police probe set up to identify all Tobin's victims and stretches back to the 1960s.
Peter Tobin is born on 27 August in Johnstone, Renfrewshire, the youngest of four brothers and three sisters.
Aged seven, he is sent to a reform school.
Tobin is reported to have received a minor conviction and spends time in a young offenders' institution.
According to reports, Tobin works as a chef in a Glasgow boarding house. In August 1969, aged 22, he marries his first wife Margaret Mountney, aged 17, in Brighton.
She is with him for a year. It is reported that Tobin raped her three or four times, stabbing her and leaving her for dead. A downstairs neighbour rescues her after seeing blood coming through the ceiling.
Tobin is convicted and jailed for burglary and forgery in England, according to reports.
Tobin marries 30-year-old nurse, Sylvia Jefferies in Brighton. They have a daughter, who dies, and a son. Sylvia leaves him after three years, taking the boy with her, who is also understood to have died.
Tobin is alleged to have raped an eight-year-old over a two-month period - he lived in the same council block as her, in Portsmouth.
The child eventually tells her parents and it is reported to the police but after being interviewed and examined they decide there is not enough evidence to proceed.
Reported to have worked as a lagger, who travelled the country fitting insulation panels in buildings. He marries 16-year-old Cathy Wilson in a Methodist church in Brighton, who gives birth to their son Daniel shortly after their wedding.
Tobin and his family move briefly to Bathgate, West Lothian.
Vicky Hamilton, 15, goes missing from a bus stop in Bathgate on 10 February, sparking one of Scotland's biggest ever missing person's inquiries.
Dinah McNicol, 18, from Essex goes missing on 3 August after accepting a lift on the way home from a music festival in Liphook, Hampshire. She is with a male friend until he is dropped off near Reigate, Surrey. She is never seen again and her case is featured on Crimewatch.
Tobin moves to Margate, Kent, through a council house mutual exchange scheme. A neighbour spots him digging a large hole in his back garden. Tobin claims it is a sandpit for his son, Daniel.
Having moved to Havant in Hampshire to be near Daniel, he is looking after his son in his flat in Leigh Park one night when he drugs and rapes two 13-year-old girls.
Interrupted by his five-year-old boy, Tobin calls his wife at 2am to ask her to collect Daniel, saying he was having a heart attack. He leaves the flat with the gas on and the girls inside, but one of the girls manages to escape and raises the alarm.
BBC Crimewatch broadcasts an appeal for information about his whereabouts on 9 September and he is arrested in Brighton, 40 days after he disappeared. Using the name Peter Wilson, he had spent time with a Christian community in Coventry, who alert police after spotting the Crimewatch broadcast.
Tobin is found guilty of the attacks in Havant at Winchester Crown Court in May and sentenced to 14 years in jail. He serves nine.
Tobin is released from jail in 2004 and moves to Paisley.
He flees his Paisley flat on 23 October after attacking 24-year-old Cheryl McLachlan with a knife there. She runs bleeding to the police but they do not visit Tobin's flat until the following day, by which time he has gone. A warrant is issued for Tobin's arrest.
In May Tobin again seeks refuge through a religious organisation.
He arrives at St Patrick's Church in Anderston, Glasgow, and takes advantage of homeless group Loaves and Fishes, working as an odd job man under the false name of Pat McLaughlin.
On 24 September he rapes and murders Polish student Angelika Kluk, 23, hiding her body under the floor of St Patrick's Church in Glasgow.
Tobin is interviewed by police after Angelika Kluk was declared missing. He gives them a false name, address and date of birth, then goes missing the next day.
Angelika Kluk's body was discovered on 29 September. On 30 September, Tobin was found, after a tip-off, in the National Neurology and Neurosurgery Hospital in London.
Tobin is formally charged with the murder of Angelika Kluk on 7 October.
Tobin's trial at the High Court in Edinburgh begins in March - he is charged with Angelika Kluk's murder and two charges of attempting to pervert the course of justice.
Tobin is sentenced in May to a minimum of 21 years in jail for the murder of Angelika Kluk.
Police begin a search of Tobin's former home in Bathgate in June.
In July he is formally charged over the disappearance of Vicky Hamilton.
Hamilton's remains are found buried in bin bags at Tobin's former home in Margate, Kent, in November. A week later, the body of Dinah McNicol was discovered in the garden.
Tobin appears in court the same month, charged with Hamilton's murder and also charges of abduction, sexual assault and murder. He is also charged with attempting to defeat the ends of justice.
Tobin is convicted of abducting, raping and killing Vicky Hamilton. He is given a life sentence and ordered to serve at least 30 years.
Tobin is convicted at Chelmsford Crown Court of murdering Dinah McNicol.