Police believe another brawl occurred on the grounds of one of these properties.
Loading
After speaking to a number of guests at the party, detectives are still appealing to anyone with information to come forward.
In particular, detectives are seeking information about the offenders, the second altercation that occurred on a nearby property and the type of weapon used on Mr Langhans.
Police say a number of people were in the area at the time of the assault.
The three men are believed to be of driving age and are not from the surrounding area, according to investigators.
The first man is approximately 170cm tall, has dark, short-cropped hair and was wearing dark clothing.
The second man is also approximately 170cm tall, has wavy black hair which was brushed across his face and was also wearing dark clothing.
The third man is also described as about 170cm tall, has a dark short crew cut and was wearing dark clothing. Police believe he will have visible injuries to the left side of his face.
Homicide Squad Detective Inspector Andrew Stamper said from the information police have so far, the assault appears to have occurred without provocation.
“Our investigators have been working hard to identify the trio we believe are involved, but we now need further information from the public,” Detective Inspector Stamper said.
“There are people in the community who will know who was involved and who will have information that can help; we urge you to come forward with any details.
“I can’t even imagine what the Langhans family must be going through, to find out that your son and much-loved brother, who just went out to a party, will no longer be coming home.
“To the friends or guests who chased the trio away, who would have been just trying to look out for their friend, we’d like to hear from you to help establish the circumstances of what occurred and you may be able to help us find the weapon involved.
“These men need to be held to account for their actions.”
Mr Langhan’s mother, Carolyn, said she and Jason’s father, Paul, had watched their son take his last breath on Saturday.
“Jason you were our whole life and not a day will go by without us thinking about you and wishing you were here, we love you so much and our lives feel so empty,” she wrote in a public tribute on social media.
“You put up a good fight but unfortunately it was your time to go and now you’re no longer in any pain.”
Friend Jason Canal said he was in disbelief that his mate was gone.
“RIP Jason, I’m lost for words … it kills me to hear that you aren’t here with us anymore and that we can’t go fishing together like we always talked about,” he posted on social media.
“My heart’s aching [at the moment] and I’m in so much disbelief, it’s so unfair what’s happened. I love you heaps, fly high brother.”
Anyone with information is urged to call Crime Stoppers on 1800 333 000
Start your day informed
Our Morning Edition newsletter is a curated guide to the most important and interesting stories, analysis and insights. Sign up here.
David Estcourt is a court and general news reporter at The Age.
Most Viewed in National
Loading
Source: | This article originally belongs to smh.com.au
ncG1vNJzZmhqZGy7psPSmqmorZ6Zwamx1qippZxemLyue82erqxnoKS5qq%2FEZqqemaKYtW6yzqtkraqZpHq4rc2tnJ1ln6uys3nFmquapF2WwbWtwqRkqKZdqbKmuo4%3D