They stayed at the bizarrely-named House of December before the attack that shattered a city.

A $90 per night Airbnb property dragged into infamy and forever to be remembered as the Campsie rental that served as a fleeting base for two murderous monsters.

The share house La Casa di Dicembre was raided by police after a father and son launched the most heinous terror attack in our history at Bondi Beach on a balmy Sunday evening.

Sajid Akram 50, and Naveed Akram, 24, lived at Bonnyrigg in Sydney’s west, and reportedly told family members they were heading off on a weekend fishing trip.

They lied.

The journey they mapped had them armed with high-powered rifles and implementing a deliberate plan to take innocent lives.

Twenty-one kilometres east of Campsie lies the iconic Bondi Beach.

A tourism trademark known worldwide.

It is where hundreds from the Jewish Australian community gathered in a park by the beach to celebrate the opening day of Hanukkah, the “Festival of Lights”.

Mums, dads, kids, grandparents, beaming faces, laughter and fun.

Until the first shot was fired to set off a train of events that would leave 16 people dead and more than 40 others injured.

Emergency services were alerted around 6:47pm.

The gunmen had arrived earlier and parked a car near the footbridge leading from Campbell Parade to the beachfront.

While the younger gunman moved quickly to take up a position on the bridge, video taken by a local resident shows his father swivelling and shooting at a bystander on the footpath.

The pair within seconds are shooting in a northerly direction where the Hanukkah festivities are taking place in the vicinity of a children’s playground.

In that opening minute, Sajid Akram moves off the footbridge and down towards the celebrations, continuing to fire off rounds.

Panic ensues as people run or attempt to take cover from a hail of bullets.

Police sirens can be heard in the background within a minute of shots commencing.

One of the first police vehicles on the scene takes three bullets to the windscreen.

Around three minutes into the attack Sajid Akram returns to the footbridge after he was earlier disarmed by Ahmed Al Ahmed, a 43-year-old father of two.

Al Ahmed risked his life, rushing from behind a parked vehicle to grab the gunman at the edge of a car park.

The pair grapple for several seconds before Al Ahmed strips the rifle from Akram and pushes him to the ground.

While Al Ahmed points the gun at him, Akram crawls backwards before standing up, leaning against a pole then walking back to the footbridge.

Another member of the public approaches the empty-handed gunman briefly and throws an unidentified object in his direction.

Reunited on the bridge with his son, Akram reaches for a spare rifle. Less than a minute later, he is hit by incoming fire and collapses.

A full gunfight erupts with Naveed Akram dodging volleys from both sides of the footbridge.

Shots from a semiautomatic at the northern end can be heard on video, forcing the younger Akram to duck.

As the terror attack moves into its sixth minute one shot appears to strike Naveed who stumbles before regaining his feet.

Seconds later he is felled by another bullet.

Unable to move, he lays alongside his fatally wounded father.

Police arrive on the scene, as does a mob of angry onlookers who need to be restrained while attempting to attack the shooters.

One shirtless man can be seen attempting to kick and stomp one of the downed attackers.

The Daily Telegraph counted around 80 rounds fired by the Akrams with the majority from the younger man’s gun.

Naveed got almost 30 shots away inside the first two minutes and 26 seconds on the video.

In the aftermath it was also clear there were unsung heroes on the periphery of the scene who distracted the younger Akram on numerous occasions by shouting abuse throughout the attack.

One voice could be heard yelling: “What are you doing bro?”

Another taunted Naveed, screaming “I rang the cops, man”.

The same onlooker tries again with “Cuz, come on, come on cuz”.

The younger shooter stops to wave his arm at the shouting bystanders before returning to the mayhem in the park.

Naveed left the footbridge only briefly during the assault, walking down towards the park before returning less than 20 seconds later.

When eventually he is felled by police fire, an onlooker screams: “F*** yeah, they got him” and “he’s down, he’s down”.

Another can be heard shouting: “F***ing die c***, die”.

While police apprehended the younger Akram – who remains in hospital – emergency services and bystanders moved around the devastation trying to treat or save the wounded.

One man at the scene told this masthead how “young kids” were performing chest compressions on the deceased in an attempt to resuscitate victims.

His one word descriptor for what he saw: carnage.