Hawaiki Dean Little had earlier repeatedly hit his dog with a large shovel.

Prime Minister Anthony Albanese has announced a review will be conducted into the country's intelligence and federal law enforcement agencies in the wake of the Bondi shooting.

The report will be led by former intelligence chief Dennis Richardson, and will examine multiple aspects of how Australia's security agencies are equipped to respond to acts of terror.

"The ISIS-inspired atrocity last Sunday reinforces the rapidly changing security environment in our nation. Our security agencies must be in the best position to respond," the prime minister said in a statement this morning.

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The PM's own department, as well as cabinet, will undertake a wide-ranging examination of several agencies, including the Australian Federal Police (AFP) and Australia's Security Intelligence Organisation (ASIO).

"[The report] will examine whether federal law enforcement and intelligence agencies have the right powers, structures, processes and sharing arrangements in place to keep Australians safe in the wake of the horrific antisemitic Bondi Beach terrorist attack," Albanese said.

The report will be provided to the government in April next year, and will also be made available to the public.

Albanese has stopped short of ordering a Royal Commission into how intelligence services and federal agencies acted before the shooting, which left 15 people dead.

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His stance has been criticised by the leader of the Nationals, David Littleproud, claiming Albanese was afraid of the "truth" being revealed.

"There's no reason why we shouldn't have a federal Royal Commission," he said on Today.

"There has been a litany of failures here for two and a half years. The warning signs were there from the 8th of October, 2023.

"We should look ourselves in the eye. We should look at the failings of decisions made at a political level, at intelligence levels."

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A National Day of Reflection has been declared a week on from the shooting, with people across the country and at Bondiurged to observe a minute of silence at 6.47pm AEDT.

Australians are also being encouraged to light a candle in solidarity with the victims and the Jewish community.

There will be a vigil held at Bondi Beach tonight.

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The demonstration comes a week after the Bondi Beach mass shooting in Sydney.

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Parts of Victoria have been warned to brace for severe thunderstorms, while an extreme fire warning has been issued in the state's northwest.

The Bureau of Meteorology (BoM) said storms with large amounts of rain and high winds may hit the Gippsland region today, advising residents hail is also possible.

Rain has already battered parts of the state this morning, with 46.4mm of rain recorded in just three hours to 9.40am at Ovens River near Wangaratta.

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The official warning said the severe weather could last for several hours.

"Locations which may be affected include Bairnsdale, Orbost, Bright, Falls Creek, Dargo and Buchan," BoM said.

The wild weather has been caused by a "moist and unstable airmass" moving in a line across the state.

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Meanwhile, near the Victoria-New South Wales border, an extreme fire danger has been declared in the Mallee region close to Mildura.

"Warm and dry conditions over northwest Victoria, with fresh to strong and gusty west to southwesterly winds in the afternoon, will lead to elevated fire dangers," the BOM said.

There is currently one out-of-control bushfire in the state, in and around the Wyperfeld National Park and Patchewollock, Yaapeet, and Hopetoun.

It is not threatening any homes or communities, but officials are urging residents to be on alert.

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Police lights flashed for hours as law enforcement officers surrounded a storage facility in Salem, New Hampshire, finally closing in on a suspect who unleashed deadly attacks on two communities and had managed to evade authorities for six days.

Outside was an abandoned car linked to both the Brown University mass shooting on Saturday and the killing of an MIT professor at his home on Monday.

Inside a rented storage unit the 48-year-old suspect, Claudio Neves Valente, was dead

Leaving behind a satchel, two 9mm firearms and high-capacity magazines matching ballistics at both crime scenes, along with even more questions about a motive as investigators begin peeling back the layers of his life to fill the gaps in his known past.

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What motivated two separate attacks?

Authorities have said the suspect's intent was to cause harm in targeting the Ivy League university and esteemed professor Nuno Loureiro.

It became clear because his actions showed signs of premeditation, for example, obtaining access to firearms and a bulletproof vest, said CNN law enforcement analyst and former Secret Service agent Jonathan Wackrow.

He also took strategic steps to avoid detection like swapping the licence plates on a rental car linked to both shootings, concealing his identity and avoiding Brown University's expansive network of 1200 security cameras by opening fire in a building equipped with only two exterior cameras, and with multiple exits and entrances.

Without the ability to interview or prosecute the suspect, the motive remains the hardest question, Wackrow said, and there's a chance investigators will not find the answers even after doing exhaustive searches of digital history and physical evidence.

Investigators have mapped some of the suspect's movements in the years before his attacks, but much of his past remains a mystery.

The Portuguese national attended the same academic program as Loureiro in Portugal from 1995 to 2000, after which he studied at Brown University on an F1 visa, a non-immigrant visa for international students to study full-time.

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He was enrolled in Brown from September 2000 to April 2001, when he took a leave of absence before formally withdrawing in July 2003, the university said.

There has been no formal explanation from the university on the basis for the leave, but according to CNN's chief law enforcement and intelligence analyst John Miller, it could also point to a potential motive.

Miller said investigators will likely ask questions like: Did he blame a life event for derailing his success as a former student who was described by his then-classmates as "brilliant" but also exceptionally difficult? What issue caused him not to return?

Details on the suspect's whereabouts between 2001 and 2017, however, have proved elusive at this stage.

But the suspect's strategies do suggest he may have been planning for an encounter with police or an escape, Wackrow said.

And it begs the question, according to Miller: What happened to make the suspect change course and decide to take his own life? One scenario, he says, could be the suspect was alerted authorities were on his trail.

What were his movements after the shootings?

The suspect's last known address was in Miami this year, and he rented a storage unit in Salem starting from an unspecified date in November.

He rented a hotel room in Boston from November 26 to 30 before renting a grey Nissan Sentra with Florida plates in the same city and then driving in the car to Brown University on December 1.

The car was seen several times by witnesses in the area of the school over the course of the next 12 days.

On December 13, the suspect opened fire at students in the on-campus auditorium of the Barus and Holley building, killing Ella Cook and MukhammadAziz Umurzokov, and injuring nine others.

Over the next day, the suspect returned to Massachusetts and switched the licence plates of the rental car during his time there to an unregistered plate from Maine.

On December 15, the suspect fatally shot Loureiro at the professor's home in Brookline before immediately driving back to a storage facility in Salem where he had rented a unit.

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It appears the suspect then swiped into his storage unit in Salem the same day and did not swipe out, Rhode Island Attorney General Peter Neronha told CNN.

Details of the autopsy released Friday estimated the suspect died on December 16, two days earlier than officials previously believed.

The development called into question a line in the affidavit filed by prosecutors, which said Neves Valente called the car rental agency at the airport in Hartford, Connecticut on Thursday.

A federal agent testified a man identifying himself by the name of the suspect called into the branch and asked to return the rented Nissan Sentra there.

Some leads developed in the investigation turned out not to be valid, according to Neronha, which he said is not unusual. When asked by CNN's Erin Burnett whether the Thursday call wasn't actually from the suspect, Neronha said, "That's correct."

Beyond the discrepancy, authorities on Thursday spent frantic hours trying to track the suspect and the car they believed he was driving, and had information he would be returning his rented car in Boston and boarding a flight out of Logan International Airport, according to a law enforcement official.

His storage unit served as a "logical base of operations," said Miller, and his arrival in the Brown University area nearly two weeks before the shooting indicates he had been planning for the attack.

Was there any relationship between the suspect and the MIT professor he killed?

Investigators were only able to identify a potential link between the Brown University shooting and the MIT professor killing in the past two days after officials initially said there was no connection between the crimes.

After authorities confirmed the suspect and Loureiro were students at the same university, it left more uncertainty as there's no information the two had any relationship beyond briefly overlapping as physics students and a shared time on campus.

Still, authorities say he targeted the professor.

Nuno Morais, one of his former classmates, told the Portuguese website Publico the suspect and Loureiro were among the top students at the school, but their personalities were starkly different.

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A former colleague of Loureiro said the professor and the suspect were enrolled in the best physics course in Portugal and described their academic environment as highly competitive.

"It's completely inexplicable," Bruno Soares Goncalves, president of the Institute of Plasmas and Nuclear Fusion at Instituto Superior Tecnico in Lisbon, told CNN.

Some of the questions investigators will be asking, according to Miller, are: Did Loureiro and the suspect know each other? Were they competitors or rivals? Did the suspect see Loureiro as an enemy he felt he needed to kill or someone he blamed for any failures?

The suspect had to research the home address of Loureiro, and it was a highly targeted killing, which points to premeditation, Miller said.

A former classmate of the suspect told CNN's Burnett he recognised Loureiro when the news of his death came out. Scott Watson, a professor at Syracuse University, said the MIT professor would sometimes come to Brown, but added he was unsure if Loureiro and the suspect were friends.

Who was the tipster who helped crack the case open?

At Thursday's news conference when officials announced the suspect was found dead, they repeatedly praised an unidentified tipster and graduate of Brown University who broke the case open, saying "everybody in Providence owes this individual a debt of gratitude."

Investigators in their affidavit specifically pointed to a post on Reddit, in which a user described seeing a "grey Nissan with Florida plates, possibly a rental" near the shooting scene.

The author of the post is the same individual seen in the photo released by Providence Police as they sought to talk to the man they believed to have been "in proximity" to the suspect, according to Providence Mayor Brett Smiley.

Police later interviewed him, and he told them he recognised the person seen in surveillance images released by police as the man he saw near the car shortly before the shooting.

The Reddit poster, identified in the affidavit only as John, said he first encountered the man inside a bathroom in the Barus and Holley building and noticed his clothing seemed inadequate for the cold weather.

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Once the man left the building, John saw him approach the Nissan and appear to unlock it with a key fob before suddenly turning from the vehicle and walking in a different direction, the affidavit said.

John said he remained outside as the man kept circling back to the area before quickly changing directions every time he saw John, the document said.

At one point, John confronted the man, asking him why he kept circling the block, he told investigators, according to the affidavit, to which the suspect responded: "Why are you harassing me."

John then kept walking down the street as the man walked toward the car and the two didn't have any further encounters, the affidavit said.

The rental car was just one piece of data investigators used to link the Brown shooting suspect to the fatal shooting of the MIT professor, along with a financial probe, the storage unit and extensive security footage.

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An investigation is under way into a suspected security breach at two Adelaide prisons.

Police are trying to determine if a forged access pass was used by an unauthorised person to gain entry to high-security areas at Yatala and the women's prison.

A person with limited access and possibly a criminal record was found with what may be a doctored pass, 9News understands.

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The incident has raised fears the person accessed unauthorised areas at one or both prisons without an escort.

The South Australia Department for Correctional Services confirmed that an "identification card was confiscated and suspended at the gatehouse at Yatala Labour Prison".

The department said the prisons have "stringent access control measures", including identification checks and biometric registration.

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"Any attempt to breach these stringent controls is treated very seriously," a spokesperson said.

The matter has been referred to SA Police.

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