The Liberal party is heading for a historic defeat in the Dunstan by-election.

Tonight, 9News can reveal there are serious questions about the future of opposition leader David Speirs. Ollie Haig #9News

The man who ran onto Adelaide Oval during the Crows v Geelong game last night has been arrested and charged with “entering the Oval during a scheduled event”. The 22 year old from Blakeview will appear in court in June.

Today marks 30 years since the 1994 National Crime Authority bombing on Waymouth Street.

Tonight, we speak to a detective who recently helped convict the bomber. #9News

Ben Avery

EXCLUSIVE: The fiance of Julie Seed, who was killed in a shocking act of random violence, has spoken for the first time about the horrific attack.

Watch #9News at 6pm on how you can support her children.

Extremely sad news. The very funny and very lovely Ewen Macintosh, known to many as 'Big Keith' from The Office, has passed away. An absolute original. RIP.

It is now potentially a matter of weeks before Snowtown serial killings accomplice Mark Haydon walks the streets of Adelaide again.

The parole board today approving his release, reassuring the community he poses very little risk. Ben Avery #9News

The parole board has decided to release Snowtown accomplice Mark Haydon on parole.

A six-hour roof-top stand-off has ended with the arrest of an alleged carjacker, who's accused of threatening a ride-share driver with a knife.

#9News cameras capturing the siege at Paralowie. Ben Avery #9News

A speech from the very top drawer.

A multi-million-dollar stash of illegally imported vapes has been seized in South Australia, only weeks into a national crackdown.

Authorities say it's clear from the packaging that many of the dangerous products were destined for our schools. Ben Avery #9News

#9News can exclusively reveal former Premier Steven Marshall was issued a formal ‘please explain’ over a paid job in the private sector a fortnight before an announcement today, that he's resigning from politics. Ollie Haig

It was a random act of violence that shocked the state - a southern suburbs mum stabbed to death in her Plympton office at the hands of a deranged killer.

In that moment of terror, Susan Scardigno risked everything to try to save her colleague and friend - and almost lost her…

EXCLUSIVE: #9News can reveal a nurse has become the latest victim of escalating violence in the state's prison system, taken to hospital after being assaulted by an inmate.

The incident at Yatala Prison was one of several in the past few days. Ben Avery

EXCLUSIVE: #9News has obtained the first images of the 91-year-old great grandfather charged over the murder of his wife.

Frank Dimasi is under police guard in hospital after allegedly killing his wife Maria in their home of more than six decades.

Emma Pawelski was the victim of an horrific crime, bashed to death before being dumped in Mount Crawford forest and set on fire.

Nearly two decades on, the killer still hasn't been caught and her sister is now more determined than ever to get answers. Inga Neilsen #9News

Former Premier Steven Marshall has confirmed to #9News that he's become a paid member of a company's board while still sitting in Parliament.

And he insists it's all above board, even though that same organisation was lured to SA while his Government was in office. Ollie Haig

An incredible insight into how Taiwanese authorities tracked a wanted Adelaide mum as she worked in a local law firm and made attempts to extend her visa.

EXCLUSIVE: #9News has captured the moment an Adelaide mum, accused of a relentless murder conspiracy, touches down back on Australian soil after being extradited from the Pacific Islands. #9News

An incredibly moving & emotional tribute by the Police Commissioner to his beloved son, Charlie. Delivered so beautifully and powerfully by TomRehn9 💔