The lawyer of a 21-year-old man, who pleaded guilty to assault following the Smart Street Mall attack that left two people with head injuries, said her client had anger management issues.
Kelmscott man Travis Hugh Payne appeared in Mandurah Magistrates Court on Friday, charged along with three others, for the Anzac Day assault.
Police will allege all four men were involved in the fight that left a 20-year-old woman with a fractured skull and a 27-year-old man with head injuries.
Lawyer Clare Hay told the court Payne had attended two pre-sentence programs, which identified anger as the main reason for Paynes behaviour, ruling out an alcohol problem.
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Anger management is the issue, she said.
Ms Hay said Payne had enrolled in an eight-week anger management course facilitated by Relationships Australia, beginning in September.
Ms Hay said Payne wanted to show the court his commitment to the program, and asked to be sentenced following its completion in December.
He is motivated to do it off his own back, she said.
Ms Hay applied to amend Paynes stringent bail conditions that forbid his contact with a co-accused, who was not named.
She said Payne had not been in contact with his best friend since May.
Magistrate Anne Longden refused the application.
Payne will reappear in the Mandurah Magistrates Court for sentencing on December 7, 2018.
Falcon man Dean Barry Cooper, 20, who has also pleaded guilty to assault, will appear in the Mandurah Magistrates Court on September 14.
Beaconsfield man Alex Warrell, 19, who has not yet entered pleas to two charges of intent to do grievous bodily harm, will appear in the Perth Magistrates Court for a committal mention, on October 1.
Dudley Park man Jayden Christopher Vynuchall-Larratt, 24, who has not yet entered a plea, will appear in the Perth District Court on October 5, 2018, on one charge of committing an unlawful act with intent to harm or endanger.