Amid the tragedy in Las Vegas, shares of 'stay at home stocks' such as Amazon (AMZN - Get Report) and Domino's Pizza (DPZ - Get Report) moved higher, as investors pondered whether there would be a change in behavior.

"People feel there will be some change in behavior because of this," said TheStreet's founder and Action Alerts PLUS portfolio manager Jim Cramer. "Historically, that has not been the case."

At least 58 people died and 515 were injured after a gunman opened fire on a music festival from the 32nd floor of the Mandalay Bay Hotel and Casino late Sunday, Oct. 1, according to the Las Vegas Metropolitan Police Department.

The massacre was the deadliest mass shooting in U.S. history.

The suspect was identified as Stephen Craig Paddock, 64, of Mesquite, Nevada. Paddock killed himself in a hotel room after allegedly targeting concertgoers at the Route 91 Harvest Festival on the Las Vegas Strip during a performance by country-and-western artist Jason Aldean just after 10 p.m. local time. Paddock had as many as 10 firearms in the room where he was found dead by officers.

Police had first said they had taken down the suspected shooter and did not believe any others were involved. However, Sheriff Joseph Lombardo later said a 62-year-old woman named Marilou Danley might have been a person of interest and possible roommate of the shooter. After Danley was located, police said they didn't believe Danley was involved in the shooting.

More of What's Trending on TheStreet :