[x]

Stephen Paddock began buying and refurbishing properties in economically depressed areas around Los Angeles, teaching himself how to put in plumbing and install air-conditioning. By the late 1980s, “we had cash flow,” said Eric Paddock, who added that he had given his life savings to his older brother to invest and eventually became a partner in his company, because “that’s the kind of guy he was. I knew he would succeed.” Source

In other words, before he flipped out, he flipped houses ...

[E. Pluribus Unum]

He hasn’t been flipping houses for a long time, if he ever actually did.

Flipping houses doesn’t make you scream “OH MY GOD!” at the top of your lungs in your sleep.

There is something that made him do that, and it wasn’t flipping houses.

[independentmind]

How do you know that Paddock flipped out?

[editor-surveyor]

.
He didn’t “flip out,” he obeyed what he was programmed to do. He was a long time user of psychotropic drugs, just like every other American mass murderer.
.

[AmericanMermaid]

Stevie was a crook and his brother was a leech. Nice family!