Society and Culture
The remains of Laureline Garcia-Bertaux were found in a flower bed in her garden in Kew in March.
The deaths of the men, aged 18 and 21, are being treated as negligent homicide.
The PM has denied any wrongdoing.
Tristan and Blake Barrass both died during an incident in Sheffield's Shiregreen area.
Alek Minassian faces 10 counts of first-degree murder in connection with the attack in April last year.
After an "exhaustive" investigation, the people responsible remain at large.
"It’s a very bizarre, very sad incident.”
Legal documents reveal the same officer also threatened another man with arrest unless he put his head down a toilet.
The possibility remains that she could still be alive and would have little memory of her early years, investigators believe.
The victim, believed to be aged in his early 20s, died at the scene.