He was a nocturnal creature who gambled all night and slept all day. He took Valium at times for anxiousness, and had the doctor who prescribed it to him on retainer.
Some of the testimony centered on his gambling.
He described himself as being, at one point, the "biggest video poker player in the world."
"How do I know that?" Paddock asked rhetorically. "Because I know some of the video poker players that play big. Nobody played as much and as long as I did."
At the height of his play in 2006, he testified, "I averaged 14 hours a day, 365 days a year."
"I'll gamble all night," he said. "I sleep during the day."
Asked if he ever visited the hotel pool, Paddock replied, "I do not do sun."
Stephen Paddock's 2013 testimony described unusual habits - CNN
Stephen Paddock shot a security guard who was investigating an open door alarm on the 32nd floor before Paddock opened fire last weekend, Clark County Sheriff Joseph Lombardo said.
Police: Las Vegas gunman fired at security guard before mass shooting - CNN