Four people have been charged over the murder of a Hamersley man whose body was found yesterday in the back of a car.

The body of 38-year-old father Mite Naumovski was found wrapped in plastic in the back of a four wheel drive at the Great Eastern Motor Lodge yesterday afternoon.

The find follows an intense police investigation over the past week, which centred on two northern suburbs properties.

Police are alleging a 28 year old man attended the home of Mr Naumovski's parents in Hamersley two weeks ago, firing a number of shots at the house before fleeing the scene.

Police allege Mr Naumovski then went armed to a Nollamara house where he was shot dead by the 28 year old man.

The man has been charged with murder, while two women and another man are appearing as accessories for helping dispose of Mr Naumovski's body.

All four are appearing before Perth Magistrates Court today.

Detective Inspector Dave Bryson says the further charges may arise from police investigations

"There has been a number of firearms that have been seized and over four ounces of methyl amphetamine has been seized as well and there will be further charges pending relating to those seizures," he said.