Accounts of Las Vegas police collecting bullet fragments and tracing gun purchases are among newly released records from the deadliest mass shooting in modern U.S. history.

More than 750 pages of documents were distributed Wednesday by Las Vegas police.

However, a motive remains unknown for the carnage that killed 58 people and injured more than 850 in October 2017.

FILE - This October 2017 file evidence photo released by the Las Vegas Metropolitan Police Department Force Investigation Team Report shows the interior of Stephen Paddock's 32nd floor room of the Mandalay Bay hotel in Las Vegas after a mass shooting. (Las Vegas Metropolitan Police Department via AP, File)
FILE – This October 2017 file evidence photo released by the Las Vegas Metropolitan Police Department Force Investigation Team Report shows the interior of Stephen Paddock’s 32nd floor room of the Mandalay Bay hotel in Las Vegas after a mass shooting. (Las Vegas Metropolitan Police Department via AP, File)

Police have said the 35th batch of material released since May under court order in a public records lawsuit will be the last. 

It included transcribed statements by the first officers into a high-rise hotel suite where the gunman sprayed bullets from windows into a concert crowd below before killing himself. 

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