The investigators of the Las Vegas shooting found out that Stephen Paddock, responsible for the tragedy, had been spending many years selecting the guns, FOX News reported. On Wednesday, sheriff Joseph Lombardo stated that Stephen Paddock, 64, possibly had “some help at some point” in fulfilling the incident, as he had prepared a huge arsenal, including explosive materials left in his car. The sheriff noted that the killer lived "a secret life, much of which will never be fully understood.” That "secret life" is still being investigated by authorities.

What the investigation revealed

According to the officials, the murderer had an escape plan but committed suicide when the police officers came to the door of his hotel room at the Mandalay Bay Resort and Casino.

That night, Paddock shot 58 country music fans and injured 489 more. Paddock's motive for the mass shooting is still unclear.

Sheriff Lombardo assumed that "the concealment of his history of his life was well thought out." The investigators conducted the analysis of the shooter's phones and computers, which showed neither ideological motives nor any connection to extremism. There is no evidence that Paddock had any mental illness.

The investigation revealed that Paddock had prepared 1,600 rounds of ammunition and 50 pounds of explosives for target shooting in his car. One week before the tragedy, Paddock had booked a high-rise apartment near the "Life is Beautiful" music festival.

A spokesperson for the Bureau of Alcohol, Tobacco, Firearms, and Explosives claimed that Paddock had bought his rifles, pistols, and shotguns in different states.

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Who else can be connected with the crime

Eric Paddock, the shooter's brother, called him a "private guy." Speaking about the Las Vegas tragedy, Eric Paddock noted that some circumstances should have happened that led him to the murder.

Marilou Danley, who is believed to be the shooter's girlfriend, came back to the US from the Philippines on October 3. FBI agents interviewed the woman in Los Angeles, the Guardian reported. According to Danley's lawyer, she had gone to the Philippines to see her relatives before the tragedy.

Paddock urged her to go [VIDEO]and sent her money to buy a house for her relatives. At first, the woman was very pleased, but then she was worried that Paddock wanted to leave her. Danley said that her boyfriend was a quiet and kind person, and she would never have thought that he could plan a mass murder.