Second arrest in alleged Krystal Marshall murder

A second person has been charged with the murder of beloved mum Krystal Marshall, who died after her home was allegedly set on fire.

A 29-year-old woman from Para Hills is being held at the Adelaide city watch-house after police her with murder, arson and defiling human remains.

Her arrest comes months after the arrest of a 48-year-old man on October 21 last year.

Ms Marshall’s body was found in the ruins of a house fire in the suburb of Aldinga on October 20.

The police believe she was killed inside the Barracoota Crescent home on October 19 and then the house was set on fire the following day.

Detective Superintendent Des Bray, speaking in Adelaide on Thursday, said the three were known to each other.

“The allegation will be that together those two people and those two people alone are responsible for the death of Krystal,” he said.

Detective Bray would not reveal evidence into the case but said the investigation had “grown in its intensity” since October 2023.

Detective Bray also revealed the police are eager to speak with three persons they believe could assist them with the case.

He said police had been contacted via Crimestoppers at 5.25pm on October 22 from a person they would like to speak with again.

“That person conveyed specific knowledge in respect to the murder and who might be responsible for that murder and that was an online report,” he said.

“It is very important to the investigators that person contacts Crimestoppers, rings into Crimestoppers and asks to be connected with a major crime investigator working on the Krystal Marshall case.”

He also said the police wanted to talk with two male drivers captured on CCTV at the address of the alleged murder scene on October 19 and October 20.

One vehicle is a blue Holden Astra.

“The driver stopped opposite (the house). A person appeared to emerge from those premises and walked behind some bushes to a pole,” he said.

“That person talked to the driver of that Astra for a few moments and then left.

“We really want to identify who the driver of that Astra was, so if people have seen that vehicle visiting the area know who it belongs to, or alternatively if that driver is watching, we encourage that person to ring Crimestoppers.”

The following day at 3.22pm, a white delivery van that stopped opposite the house at the time smoke started to emerge from the victim’s house, the police said.

“The driver got out of the car and appeared to watch the goings-on for a little while before getting in and driving away,” Detective Bray said.

The police described the person as a man with an orange turban, full facial hair beard, a green hi-vis vest and dark trousers.

“That person may have seen something that is important to us,” he said.

The CCTV images are too blurry to show the number plates of the vehicles.

Ms Marshall, 38, leaves behind two children, aged 15 and nine.

The 29-year-old woman is expected to appear at Adelaide Magistrates Court either Thursday afternoon or Friday morning.

The name and image of the 48-year-old man has been suppressed.

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