'No evidence of second shooter' in Las Vegas attack

Investigators just changed a key part of the timeline in the Las Vegas shooting

Stephen Paddock, 64-year-old wealthy former accountant and high-stakes gambler has been identified by police as the man behind the deadliest mass shooting in modern U.S. history when he opened fire from the Mandalay By Hotel and Casino on October 1, killing 58 people and wounding almost 500 others, before turning the gun on himself as police closed in.

During a press conference held on Monday evening, Lombardo said investigators have not been able to hone in on any one particular event that might have caused Paddock to open fire on the crowd.

Broken windows from the hotel room on the 32nd floor of the Mandalay Bay Resort and Casino where gunman Stephen Paddock carried out his mass shooting.

Revised timeline surrounding Stephen Paddock's October 1 shooting rampage in Las Vegas.

The latest details to emerge regarding the deadly Las Vegas mass shooting earlier this month indicate the first gunshot came minutes earlier than previously reported.

Sheriff Lombardo also said Monday that evidence, including the damaged fuel tanks, suggested Mr. Paddock may have been planning to flee.

Tanner accompanied FBI's investigators as they have search warrant of Paddock's house.

Now it's been confirmed that Campos was shot six minutes before Paddock began firing on crowds, according to Daily Mail. "We believe he made a decision to take the lives he did and he had a very purposeful plan that he carried out". He added that Paddock had not finished drilling, but said that he was probably drilling a hole in the wall to place a camera or a rifle. Investigators have found 200 incidents of Paddock moving through the city, and at no time was he with anyone else, Lombardo said.

After Campos had been shot, he radioed his location to Mandalay Bay's dispatch, who shared the information with law enforcement.

The officers said they heard reports of gunmen on both the 29th and 32nd floor, so "we're thinking multiple shooters at this point, " Sgt. Joshua Bitsko said.

Investigators are continuing to question Paddock's brother, Eric, and his girlfriend, Marilou Danley. Officials say he meticulously planned the shooting. The 64-year-old gunman has been described as "quirky" and a "narcissist". "They're going through everything and photographing everything again".

Also Sunday, authorities began returning the baby strollers, shoes, phones, backpacks and purses that have been strewn for days across the huge crime scene that a week ago was home to 22,000 country music fans at the Route 91 Harvest festival.

People left behind thousands of items, Clark County Emergency Manager John Steinbeck said.

At the assistance center set up at a convention center in Las Vegas, a steady stream of individuals walked in on Monday looking for purses, wallets, cellphones and even a wedding bracelet.

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