The son of a former bikie boss has been kidnapped and killed, triggering a major murder investigation spanning across Melbourne.

Patrick Longordo, 30, was allegedly snatched from his South Morang home by up to seven-armed men in the early hours of this morning, before his body was dumped near a playground in Tarneit, almost 60 kilometres away.

The victim is the son of former Mongols president Joseph Longordo.

Detective Inspector Dean Thomas from the Homicide Squad confirmed the attack was targeted.

“It appears at this point in time that the offending is somewhat targeted,” he said.

“Yes, yes he was known to police.”

It’s understood up to seven Sudanese males smashed their way through the front door of the 30-year-old’s home around 3am.

He was asleep when the machete-wielding thugs allegedly attacked. His brother James and two children were also inside at the time.

“To be home in your house and to have something like this happen is extremely, is very, very frightening,” Thomas said.

The victim was dragged from the family home into a dark-coloured Mazda, which was captured on security footage racing through the streets of Tarneit.

His body was discovered in a public park, metres from a playground, around 4.30am.

“I was here last night and usually I don’t feel unsafe in this area. Now, I think I would think twice before going out when it’s dark,” one local woman said.

Another resident said: “There’s never any trouble in the area. It’s really, it’s really quiet.”

The Mazda was abandoned and torched on a secluded road surrounded by paddocks near Ainsbury just before 6am.

Investigators are now searching for another getaway car and have made a desperate plea for witnesses and dashcam footage to help canvas the broad area.

“I assure the community that we have a large number of Homicide Squad detectives working on this investigation and we will piece it together,” Thomas said.

It’s understood Joseph is currently on a flight home from Bali after receiving word of his son’s death.

Police will be on high alert with concerns of possible retribution.

7NEWS understands the family isn’t fully cooperating with police. Meanwhile, those responsible are still on the run.