Mental Health Commissioner Taimi Allan has visited workers who saw Shaun Dunk before alleged murder

Shaun Michaels Dunk was “in a really good place” when he left an Adelaide mental health centre - just hours before allegedly stabbing a woman to death. Picture: 9 News

Shaun Michaels Dunk, 30, on Thursday faced the Adelaide Magistrates Court charged with one count each of murder and attempted murder. Picture: 9NEWS Adelaide

Shaun Michaels Dunk was “in a really good place” when he left a mental health centre just hours before allegedly killing a mother of two and wounding her colleague.

Staff and peer workers who dealt with Dunk at the Urgent Mental Health Care Centre (UMHCC) told SA’s Mental Health Commissioner Taimi Allan that the 30-year-old seemed well when he left the centre on Wednesday.

“When he left their care he was in a really good place,” said Ms Allan, who visited the centre on Friday morning.

“He was someone who was getting better, who was well.

“He didn’t need to be discharged because he wasn’t under a compulsory treatment order at the time.”

Shaun Michaels Dunk, 30, on Thursday faced the Adelaide Magistrates Court charged with one count each of murder and attempted murder. Picture: 9NEWS Adelaide

Dunk has since been charged with the murder of Julie Seed, 38, and the attempted murder of her colleague Susan Scardajno, 50, in Plympton on Wednesday afternoon.

Ms Allan described the incident as “an absolutely horrendous, awful tragedy” and said the news had come as “a terrible and enormous shock” to people working at the UMHCC.

“This isn’t this faceless health system, these are real people,” she said.

Ms Allan conceded that some people may be fearful following the incident but said her “plea is to not tar everyone (with mental health issues) with the same brush”.

The health department has confirmed Dunk had been admitted to the Royal Adelaide Hospital on a compulsory inpatient treatment order and was released on Monday, December 18.

It is understood he spent Tuesday night at the UMHCC, on Grenfell St in the CBD, which is a voluntary walk-in service run by clinicians and people with lived experience of mental illness.

UMHCC is part of Head to Health, a federal and state government-funded initiative delivered by Neami National.

Health Minister Chris Picton has announced Dr Sophie Davison – chief medical officer for mental health in Western Australia – will conduct a review into the SA health system’s involvement in the case.

A Neami National spokeswoman has said the company was “assisting police with their investigation and will assist in any inquiry organised by the chief psychiatrist”.

Ms Allan said there were “amazing” services that provided care for South Australians in mental distress, instead of resorting to hospital emergency departments, but “we’re not very good at promoting some of the alternatives”.

“When someone is unwell we’re very quick to say ... well they’re going to need a doctor,” she said.

“(But) the worst place to be when you’re in distress is in a (emergency) room with bright lights and lots of noise.”