Inside the retirement community where America's deadliest killer plotted mayhem and murder

Paddock and his girlfriend maintained a low profile – until Sunday night

Police have said they are searching four crime scenes (AP)

In the quiet retirement community north east of Las Vegas that was home to Stephen Paddock, there were plenty of questions – but very few answers.

As more details trickled out about Paddock and the staggering crime he had committed in the city 80 miles away, those who lived close to him could express little more than bewilderment and surprise.

The man who lived at Babbling Brook Court – the driveway to his modest home now blocked by bright yellow police tape – had set off no red flags, and done nothing to suggest he was capable of the murder he unleashed in such calculated fashion on Sunday.

Paddock’s family said they were stunned to learn he was responsible for the deadliest mass shooting in US history (AP)

That is not to say Paddock, who lived with his girlfriend, Marilou Danley, was especially sociable or a regularly involved in community activities. Rather, since he bought the property two years ago, Paddock and Ms Danley lived quietly, making frequent trips into Las Vegas where both gambled and enjoyed doing so.

Such was the low profile Paddock appeared to have kept, one neighbour who lived just a few doors away said he struggled to recognise the man whose face overnight appeared on the front of newspapers around the world.

Standing in his driveway and looking out at Paddock’s home, Rod Sweningson said he knew the residents on either side of the property now being searched by police, but not Paddock himself.

“I look at his picture on the tube but it doesn’t ring a bell,” said Mr Sweningson. “He was reclusive.”

The 57-year-old said that when he first saw police vehicles swarming at the property, he assumed it was because of excessive socialising. “My first thought was someone must be having a heck of a party.”

Another resident of Sun City Mesquite, a development of about 1400 homes, who was walking his dog and who asked not to be named, also suggested Paddock had lived an unremarkable life here.

If he had passed him on the pavement, he said, he would not have recognised him.

Yet, however stunned residents here may feel, they have now been forced to confront an almost inconceivable reality; that the divorced, retired accountant, made use of this quiet place, surrounded by mountain tops, mesa and clean desert air, to plan and prepare for what was the deadliest mass killing in modern US history.

In addition to the 23 weapons discovered in Paddock’s suite on the 32nd floor of the Mandalay Bay casino and hotel located on the Las Vegas Strip, police recovered 19 guns from his house here in Mesquite. Inside the single-storey property topped with clay tiles, officers also found what were described as explosives.

It appears Paddock purchased his weapons legally (AP)

Meanwhile, inside one of two vehicles registered to Paddock officers found ammonium nitrate, a vital ingredient for making homemade bombs. The news caused many to ask whether Paddock had in mind a massacre on an even greater scale?

Much like Paddock’s neighbours, federal and local police were scrambling to explain what motivation lay behind Sunday’s attack, when he opened fire on a country music festival, killing 59 people and injuring at least 527.

One senior US homeland security official told Reuters there was no evidence that Paddock even had passing links to either international or domestic terror groups. His record showed no history of lawbreaking.

“We cannot even rule out mental illness or some form of brain damage, although there’s no evidence of that, either,” said the official, who was not identified.

President Donald Trump told reporters on Tuesday that Paddock had been “a sick man, a demented man”. He declined to answer a question about whether he considered the attack an act of domestic terrorism.

Officials have revealed that Paddock purchased weapons legally from a number of gun shops in the West, one in Las Vegas, and one in Mesquite called Guns & Guitars.

The shop, where long guns and targets shaped like a rabid dog or a zombie woman hung behind the counter, was shut on Tuesday. But its general manager Christopher Sullivan, earlier told NBC News in a statement Paddock had bought a handgun and two rifles within the last two years.

“All necessary background checks and procedures were followed, as required by local, state, and federal law. He never gave any indication or reason to believe he was unstable or unfit at any time,” Mr Sullivan said.

“We are currently cooperating with the ongoing investigation by local and federal law enforcement in any way we can. We mourn for this tragedy and our thoughts and prayers are with the families of the lost and injured.”

Additional reporting by Andrew Buncombe in New York