Although investigators are still at a loss as to the motive behind Paddock's attack, it has now been confirmed that:
Paddock created a ring of surveillance around him with video cameras in his suite and in the hallway to warn of approaching police - he had set up two cameras in the hallway, one concealed on a service cart and a third camera over his suite door peephole
Paddock managed to bring 23 guns and hundreds of rounds ammunition into his hotel suite, police have yet to report on CCTV details which they hope will show how Paddock concealed the weapons
The gunman had at least 10 suitcases in his room - but hotel staff say it would have been easy to bring suitcases to a room without arousing suspicion
Paddock had transferred $100,000 to a bank account in the Philippines - it is not yet known whether it was part of an escape plan or otherwise, it is also not yet confirmed if the bank account is that of his girlfriend
Paddock had outfitted 12 of his rifles with a 'bump stock', a device that enables a gun to fire hundreds of rounds per minute, like a machine gun - such devices are generally legal in the state and can cost as little as $99
The gunman checked into the luxury suite in the Mandalay Bay hotel on September 28, 2017 which allowed him three full days to prepare his shooting spree
Paddock hung a 'Do Not Disturb' sign on his suite door for three days so no housekeeping entered the room - a hotel worker told The New York Times. Housekeepers are allowed to enter a room with such a sign only in the presence of a security guard, which happens rarely and only after several days
Paddock's behaviour did not concern any staff, who are trained to look for anything suspicious
Paddock's 47 weapons (found in both his two houses and in his hotel suite) were all traced and bought in Nevada, Utah, California and Texas
Emergency services received their first phonecall at 10.08pm on Sunday night, according to Las Vegas Police Department undersheriff Kevin McMahill. The shooter stopped his attack at 10.19pm. He commended authorities for their work and said to stop such an attack in just 11 minutes was "remarkable".
The undersheriff explained that there was a delay in the SWAT team entering the hotel suite, as they assessed the area, but confirmed that the shooter's attack had stopped at this stage. He said it is believed Paddock may have killed himself once he saw the SWAT team in the hallway outside his suite through his surveillance.