Brendan Nugent, the 43-year-old Victorian man accused of ramming his LandCruiser into Independent MP Helen Haines, has appeared in court today on five charges.
Authorities say they are still working to determine an alleged motive.
The incident has opened a fierce debate about the safety of politicians and worsening political discourse.
So, will the tragedy change anything?
Today political commentator and author Niki Savva on what needs to happen now.
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