A teenager died after being punched once by gatecrashers at a Halloween party, the Coroners Court was told today.
Justin Galligan, 16, had been a guest at the party in Balwyn when he was hit on the left side of his jaw.
Senior constable Tania Cristiano, counsel assisting the coroner, said Justin fell to the ground and hit the back of his head on the night of Friday, October 31, 2008.
She said Justin lost consciousness for between 30 seconds to three minutes.
"According to witnesses, after regaining consciousness Justin appeared drunk, confused about the fight and was heard to complain of a headache and vision problems," Senior Constable Cristiano said.
"He began walking home with friends during which time he was ill.
"A taxi was hailed and he was driven home and on arrival at home he was escorted to his bedroom and placed in a chair to sleep.
"The following morning he was found by his mother."
An ambulance was called and Justin was taken to the Royal Melbourne Hospital.
Neurosurgeon Bhadu Kavar performed a temporal decompressive craniotomy on Justin but he died in hospital the next day.
The cause of death was listed in the autopsy report as a head injury.
Sheridan Bowden, 19, said she had been a Year 9 student at Canterbury Girls Secondary College when she decided to have a Halloween party at her house when she was 15.
She sent out invitations to about 50 to 55 people by text message and MySpace.
Her parents supplied food and soft drinks for the party and people were allowed to bring alcohol if they wanted.
"During the night I was talking to everyone that was there and almost everyone was drinking alcohol and everyone in my opinion were drunk or effected by alcohol (sic)," Sheridan said in a statement.
About 10.30pm she saw a scuffle involving about 10 people pushing or shoving each other in a car park at the rear of her home.
She did not see Justin being hit.
Asked by Senior Constable Cristiano if it was a common occurrence for people aged 15 or 16 to bring alcohol to a party, Sheridan said: "Yes."
She said her parents had told her before the party that if they saw someone who was really drunk they would send them home and call their parents.
Her father, Randy, said that during the night about 30 to 40 children were outside his home during the party spread along the street.
"My concern was any loud or unruly behaviour by them that may upset the neighbours but they were well behaved," he said.
"None were ever threatening. I hesitated to call the police because they were not unruly, causing damage or threatening."
State coroner, Judge Jennifer Coate, is considering public health and safety issues arising from teenage parties following Justin's death.
No one has been charged with manslaughter over Justin's death.
Four youths aged 17 and one youth,16, were charged with affray and assault-related matters in relation to the night and were dealt with by the Children's Court in 2009. No convictions were recorded.