Murder
The dismembered head and torso of William Algar were found at a house in Barnes, south London, on January 3.
A new ITV series that examines the 1985 murders of five family members at a farm house in Essex airs on January 8.
Police believe the victim, whose remains were discovered in Nowell Road, Barnes, is a 53-year-old man.
Bamber was convicted of killing his parents, sister and her six-year-old twins in 1985.
Police identified him only as a white male with a small star-shaped mole on his right thigh and a protruding belly.
A 39-year-old man has been arrested on suspicion of two counts of murder.
Newborn Andrei Stefan died in hospital days after the horrifying knife attack in Wallsend, while his mother Andreea was injured.
Ayoub Majdouline, 19, who carried out the fatal attack over a gang dispute in Leyton, east London, must serve a minimum 21 years.
Ewan Ireland was 17 when he attacked Peter Duncan, 52, with a screwdriver at the entrance to Eldon Square shopping centre.
Kevin Flanaghan and Kathleen Salmond drowned their victim, callously dumped her in a rubbish bin, and then netted £4,979.