I do think people do creepy things with body parts. I cannot find a connection but these instances are puzzling. There was a leg found in Hertfordshire then other body parts which seem out of the ordinary. I almost feel they are body parts from someone discharged from hospital then murdered.
https://www.google.com/amp/s/amp.theguardian.com/uk/2009/mar/30/body-part-found-hertfordshire
The Human Jigsaw: A leg was found first, then a forearm ... so, what is the truth behind Britain's bizarre murder mystery? | Daily Mail Online
Quote: What they do know is that the dead man was in poor health when he died. Aged between 45 and his early 60s, around 5ft 10in and weighing between 16 and 17stone, he had two missing front teeth, suffered from eczema, which caused his skin to scale, and had discoloured and thickened toenails which harboured a fungal infection.
Examination of the lower left leg revealed he had once suffered a fracture, which would have required him to have worn a cast.
Then there is this a severed foot in Grimsby
Severed foot found on path remains a mystery two years on
Quote: Investigations included examination of processes for disposing of body parts at Diana, Princess of Wales Hospital which is several miles from the scene. But none of those proved conclusive.
Speculation over the discovery included suggestions that a medical student may have obtained the human remain as part of their homework and later disposed of it