We'll be working closely with the Boston Police Department, the Massachusetts State Police, and all of our law enforcement partners to fully investigate any and all potential leads that stem from the ongoing investigation in Las Vegas.
The research included outdoor concerts and hotel rooms that overlooked those concerts, NBC News reported, and Paddock reportedly booked a hotel room that overlooked the Chicago music festival Lollapalooza.
Boston police say the investigation into the Las Vegas gunman turned up evidence that referenced venues in Boston, including Fenway Park.
Paddock, who officials believe had an escape planned, fatally shot himself as a SWAT team descended on his hotel room. Numerous hotels researched by Paddock offered views that were heavily obstructed and Paddock eventually gave up on the search.
News: Stephen Paddock searched for hotels near Fenway Park in Boston, senior official says.
"That's something that obviously concerns us but right now there's no credible threat that anyone is still out there looking to do anything like that", Evans told reporters on Thursday night. The FBI has requested all inquiries be referred directly to them.
The Red Sox are asking fans to arrive early for all postseason games at Fenway Park to leave time for security screenings at the gates.
Though there is no evidence yet that Paddock ever actually traveled to Boston, he reportedly researched locations here that held outdoor concerts - such as Fenway Park, which has hosted multiple concerts recently - as well as concerts in Chicago, law enforcement officials told NBC News. Paddock, 64, went as far as booking a room in a Chicago hotel but did not show up, the officials said. Malia Obama, daughter of former President Barack Obama, was among the thousands of spectators at the Lollapalooza festival.
"We just have information that he was on possible sites looking at Boston there's nothing to indicate he made it here or he ever stepped foot in Boston".
Paddock killed 58 people and wounded hundreds when he opened fire on the Route 91 Harvest Festival, a country music festival on the Las Vegas Strip, from his suite on the 32nd floor of the nearby Mandalay Bay Hotel.