The woman and her unborn child died in a crash with a police car in Kidbrooke, south-east London.
Ozdemir Zia knocked over and killed an 83-year-old woman near Woolwich Arsenal station in 2021.
Sexual predator and murderer Koci Selamaj attacked a guard at his maximum- security jail.
The offences took place last May while Koci Selamaj was being held at Frankland Prison.
A BBC News producer made the discovery about the Greenwich borough while contesting his own fine.
A group aiming to "end male violence" hope the garden will become a safe space for women.
The Sabina Project is aimed at ending male violence through education and changes in law.
Members underwent chemistry training to run the £10m-a-month laboratory in Warwickshire.
The murdered teacher's sister says if they were a white family they would have been treated better.
