Just days before opening fire on concert goers, Paddock calmly and methodically transported suitcases to his suite on the 32nd floor of the Mandalay Bay hotel.
In the footage exclusively obtained by the New York Times, Paddock can even be seen joking with staff, eating sushi in the resort's restaurant and gambling for hours.
At one point, Paddock is captured taking seven bags to his room at once, looking at ease as he chats with staff.
The bags held the automatic weapons and 1,100 rounds of ammunition he used to injure more than 800 people and kill 58 that were attending the Route 91 Harvest Music festival on the grounds below his window.
Casino staff have said it was not unusual for hotel visitors to bring large amounts of luggage.
'The video footage is remarkable in it's banality,' the New York Times said, describing how Paddock checked into his room before driving an hour to his home and returning with more bags.
'Over seven days, hotel staff unwittingly helped him to move bag after bag of weapons to his room.'
His actions are calm and friendly with everyone he encounters, showing no indication of the shocking crime he was about to commit.
You can watch the footage here.