Every outstanding missing person's case in Australia will be re-examined after a man was charged with the 'horrific' kidnap and attempted murder of two female backpackers, police have revealed.

It comes after pictures emerged of the bedroom of the man suspected of trying to kill the two girls in a remote South Australian national park near Salt Creek on Tuesday night.

The pictures come as the newly set up Taskforce Coorong updated the public on its investigation so far.

View photos Inside the bedroom of the alleged attacker. Photo: 7 News More

Acting Asst Commissioner Douglas Barr told media: "About 45,000 cases reported in Australia every year, we will be looking at all outstanding missing persons.

"Every outstanding case will be looked into. These two women have been subject to a horrifying incident."

The acting commissioner said that the 'terrifying incident' had shocked the community and he understood there were lots of questions that the police are unable to answer at this time.

"Speculation is rife in the community and the press, and rightly so.

"It's prudent, if nothing else, to invest the background of this offender. The man is before the courts with a serious offence and is entitled to the presumption of innocence.

View photos Acting Assistant Commissioner Doug Barr spoke to the media on Friday afternoon. Photo: 7 News More

"His name will remain suppressed at least until committal proceedings are finalised but I don't think its appropriate to detail this person's criminal history," Acting Asst Commissioner Barr added.

7 News revealed yesterday that the suspect was already in police sights as detectives had already raided his southern suburbs home several times in the past year seizing items of interest.

The accused man and his elderly father live in Morphett Vale. Late on Thursday afternoon his family reacted to the arrest.

View photos The suspect's father reacted to the arrest saying it was 'unexpected'. Photo: 7 News More

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