The Porsche driver accused of fleeing the scene of an horrific crash that left four Australian police officers dead has been identified as a Melbourne mortgage broker.
Richard Pusey, 41, attended West Melbourne Police Station this morning with a lawyer after Victoria Police Commissioner Graham Ashton "strongly suggested he gets himself down to the nearest police station to present himself to assist with these inquiries".
Pusey has spent the morning with homicide detectives to help them piece together what happened last night. He is also potentially facing charges for fleeing the scene of an accident, an indictable offence.
Pusey was driving his 2016 Porsche 911 Coupe down Melbourne's Eastern Freeway just before 5pm last night when he was pulled over for allegedly hitting speeds of 140km/h.
A further oral fluid test on Pusey found the 41-year-old had allegedly tested positive for drugs.
The decision was made by officers to impound Pusey's car, leading to the first two officers to call for back-up.
As the four officers stood in the emergency lane to organise the impound, police said a refrigerator truck veered into the lane, hitting the group and killing them.
The four police officers tragically killed have since been identified as Leading Senior Constable Lynette Taylor, Constable Glen Humphris, Senior Constable Kevin King and Constable Josh Prestney.
Police allege Pusey took photos of the graphic crime scene before fleeing on foot down the freeway and sharing the pictures with friends on social media.
Victoria Police Commissioner Graham Ashton said Pusey's behaviour was "disgusting" and said the photos were "quite graphic".
"To leave the scene is a very, very low act in my view," he said.
A number of good Samaritans, including an off-duty doctor, stopped to try and give first aid to the four police officers but they were unable to be saved.
Pusey, who runs Switch Now Home Loans, is an avid social media user and often posts about his expensive sports car online.
He was also named as one of the top 100 brokers by Mortgage Profession Australia in 2013.
The 41-year-old has left hundreds of TripAdvisor reviews, including ones where he boasted about "racing" his Porsche.
"When I'm not racing my Porsche or chasing the Sky Bus for its free Wi-Fi I like to get up and dance," Pusey wrote on a November 2018 review of a Melbourne helicopter company.
"I've found these folks are particularly good at such things and will return one day when my heads not already near the clouds."
A month earlier, Pusey reviewed Melbourne Airport's SkyBus company.
"I like to drive behind the bus in my Porsche because it doesn't have Wi-Fi," he wrote.
"I set the cruise control so as to allow me to social network and all that cool new age type stuff that's all the rage. Me and my Porsche enjoy the day out doing this activity."
Pusey's Porsche, which is registered in Queensland, was also seen in recent dashcam footage speeding down the same freeway a month ago.
There is no suggestion Pusey was driving, however it is the same car.
In the footage, the driver, travelling at 100km/h, can be heard saying "what a f**king idiot" when the Porsche flies past him.
Commissioner Ashton said earlier today the truck driver had suffered some sort of medical episode and had "blacked out" after the crash.
"It's not believed he has suffered injury in the accident but has had some sort of medical episode at the scene and has been taken to hospital for medical treatment. We intend him to be there under police guard for some time."
A warrant was executed on the truck driver's Cranbourne home early this morning.
"What was found at those premises is still under investigation," Ashton said.
The death of the four officers is the single deadliest day for Victoria Police in history.