What could motivate someone to mow down a grandma, nurse and widely respected MP? Although no charges have been laid, questions emerge about the alleged grievances of Brendan Nugent. 

Read more: 

‘Plant person’ and ‘pro-Gaza’ radical Brendan Nugent arrested over Helen Haines attack

Helen Haines attack sparks political rivals to rally behind ‘one of the finest’

Barber Ricky Jefferies recalls disarming driver after alleged Helen Haines attack

See omnystudio.com/listener for privacy information.