Pictured: Pensioner, 81, knocked down and killed by bike in London's Regent's Park - as her son rages 'something has to change' after cyclist WASN'T prosecuted

Hilda Griffiths was crossing the road with her dog at 7am on a Saturday in June 2022 when she was smashed into by Brian Fitzgerald - who was doing up to 29mph in a 20mph zone.