Brendan Nugent is due to appear in the Wangaratta Magistrates Court on Wednesday after being held overnight. Victoria Police confirmed in a statement that officers would allege the incident was targeted, and that a highway patrol officer responded to the scene just eight seconds after emergency services were called.
A search warrant was executed on Tuesday at Nugent's property on Great Alpine Road in Tarrawingee, approximately 15 kilometres east of Wangaratta. Police said the incident appears isolated and there are no other known threats connected to the matter. An enhanced police presence, including members of the Public Order Response Team, remains in Wangaratta.
Nugent's father, Rod Nugent, and his partner, Christine Cunningham, released a statement describing Monday's events as "devastating and unfathomable". They said Ms Haines has been a friend of the family for more than 20 years and is "a deeply respected, valued and much loved member of our local community". They thanked the community and police who came to her aid and said they would assist Victoria Police in any way they can.
Ms Haines, the member for Indi since 2019, suffered critical lower-body injuries when she was pinned between two cars. She was airlifted to Melbourne for emergency surgery. Colleagues and community members have expressed shock and support.