Moment Elizabeth line passengers rush to man's defence after he is slapped by insult-hurling stranger on busy carriage - then force attacker to apologise
Stomach-churning footage shows an unidentified man slapping another passenger on board a service from Forest Gate towards central London on Thursday.
Black News 
Stomach-churning footage shows an unidentified man slapping another passenger on board a service from Forest Gate towards central London on Thursday.
