He was courageous in intervening during the rape and also gave evidence in court.
The 26 year old was murdered in Dalston, east London, on Sunday 25th March and the perpetrator has yet to be arrested in connection with the crime.
Badru was described by his family as kind, bold and a “beautiful soul” who “hated confrontation” and had “never been involved” in fights.
Mr Badru was attacked after he parked his black Mercedes in Ferncliff Road, near an alleyway leading to Langford Close and Foxley Close.
He was approached by one or more suspects as he opened his car boot before being shot in the chest.
Emergency services were called at about 23:00 GMT but Mr Badru died at the scene.
Mr Badru attained a BSc in sport science and an MSc professional practice in sports coaching at the University of Gloucestershire, and had been hoping to get a PhD.
He is the son of a Nigerian lawmaker, Hon Enitan Dolapo Badru