Stephen Paddock, Las Vegas suspect, was a gambler who drew little attention

Details about Mr. Paddock's career and livelihood were sparse, aside from observations by neighbors and family members

He was a high-stakes gambler recognized in the casinos of Nevada. He dabbled in real estate investments in Texas. His last known full-time employment was 30 years ago. He was twice divorced. He had a pilot’s license and had owned two single-engine planes.

While his motive for the mass shooting outside a Las Vegas casino on Sunday night is unknown, details of Stephen Paddock’s history pointed to an unmoored and highly unconventional life.

From his neighbors in a quiet retirement community in Mesquite, Nev., he drew little attention, unless it was for his extreme propensity to keep to himself. He