"Something happened in his head". McMahill said they had reviewed surveillance camera footage from the Mandalay Bay Resort and Casino and "not located any other person that we believe to be a suspect at this point".
Investigators are also trying to determine the meaning of a series of numbers found on a piece of paper left in the shooter's room.
Stephen Paddock's girlfriend, Marilou Danley, told FBI. investigators he had mental health issues and would sometimes lie in bed crying out, "Oh, my God!"
Paddock bought 1,000 rounds of the.308-caliber and.223-caliber tracer ammunition from a private buyer he met at a Phoenix gun show, a law enforcement official not authorized to comment on the investigation said on condition of anonymity.
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But, it's rare you run across one person with both of those qualities. "I ran across a lot of players who were great people". His trophy case includes a record five NFL MVP awards and two Super Bowl rings.
Police recovered almost 50 firearms from three locations they searched, almost half of them from the hotel suite.
Danley added that two weeks ago, Paddock had told her he found a cheap plane ticket for her to visit family in the Philippines and had wired her money to purchase a house while she was there.
In a statement through an attorney, Marilou Danley said she didn't know he planned to carry out a mass shooting.
Paddock sent Danley on a trip to her native Philippines before the attack, and she was unaware of his plans and devastated when she learned of the carnage while overseas, she said in a statement.
Last Sunday, Stephen Paddock opened fire on a Las Vegas country music festival killing 58 and injuring hundreds.
Her statement was read outside the Federal Bureau of Investigation's office in Los Angeles by her lawyer, Matthew Lombard, this past Wednesday.
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The Brad Paisley concert saluting the JR Nation Appreci88ion Tour is FREE to ticketholders to Sunday's Bank of America 500 . That, says playoff driver Ryan Blaney , is the only way to approach Talladega with any sense of comfort.
Paddock searched the internet for hotels near the historic ballpark and the Boston Center for the Arts, but there is no indication he ever traveled to the area, sources told 5 Investigates.
It comes as police announce there is evidence Paddock meant to survive his killing spree.
When Campos approached Paddock's suite, the shooter "fired through the door, striking Mr. Campos in the upper right thigh", said Hickey who is president of the International Union, Security, Police and Fire Professionals of America.
Paddock may have had some help planning the attack at the country music festival Sunday night, Lombardo said Wednesday night.
The FBI's Aaron Rouse says billboards will ask people with credible information to call the agency.
Two guards killed in terror attack at royal palace in Saudi city
Saudi Arabia announced on Saturday the foiling of a terror attack against a palace in Jeddah , Saudi Press Agency reported. In June, Saudi authorities said they foiled a Daesh attack on the Grand Mosque in the Muslim holy city of Mecca.