Documents newly released by the FBI revealed that the deadliest mass shooting in modern U.S. history might have been motivated by the killer’s animosity against casinos.

Neither the FBI nor the Las Vegas Metro Police determined an official motive for the shooting, but one possible explanation was included from a witness in the more than 600 documents that were released.

The heavily redacted documents include numerous interviews with witnesses who knew the 64-year-old man who shot and killed 60 people at the Route 91 Harvest Festival on Oct. 1, 2017.

One person told the FBI that the killer was a “prolific video poker player” who would visit Las Vegas about once a month and lost $38,000 in one trip in the middle of September just ahead of the shooting.

Another said that the murder was banned from several casinos because he played well and won large quantities of money.

The report said that the witness told them the killer “was very upset at the way casinos were treating him and other high rollers.”

Another witness said that the murderer believed Hitler was a good man and that he expressed fascination the Oklahoma City bombers.

A statement from the metro police on the release of the documents warned against harmful speculation.

“At the conclusion of that investigation in 2018, we were unable to determine a motive for the shooter,” the statement read.

“Speculating on a motive causes more harm to the hundreds of people who were victims that night,” the statement continued, “we do not believe they will shed new light in the case.”

The lack of a clear motivation for the heinous attack has led to the proliferation of conspiracy theories about the horrific incident.

Here’s more about the FBI revelation:

FBI documents reveal details about Las Vegas mass shooter including possible motive that led to 60 pwww.youtube.com

Like Blaze News? Bypass the censors, sign up for our newsletters, and get stories like this direct to your inbox. Sign up here!