A 37-year-old man died in hospital following surgery after he was attacked by a group of masked men in Sydney's west in July.
He was with another man walking along Bangor St at Guildford on a Saturday afternoon when the attack took place.
The two men had parked a street over to eat a pizza and were walking to a friend's house, police said at the time.
The other man distracted one of the attackers before retrieving the car and driving the victim to Westmead Hospital, where he died.
A 23-year-old man was arrested at a jail on Thursday and charged with murder and participating in a criminal group.
He was scheduled to face court on Friday.
Another 23-year-old man was charged with murder in the days following the attack when police raided a hotel room at Ryde.
He was also charged with possessing an encrypted phone and not complying with an order for police to access it, and remains in custody awaiting a return to court in November.
Police are also searching for two other men seen walking away from a Toyota sedan, similar to one seen leaving the Guildford murder scene, in the nearby suburb of Merrylands.
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