Stephen Paddock

Photos and notes adorn a wall at the Las Vegas Community Healing Garden in Las Vegas on Oct. 16, 2017. Two judges have ordered the release of search warrant records and autopsy reports related to the deadliest mass shooting in modern U.S. history, with some information redacted.

(John Locher / AP)

Chicago Tribune

Jan. 20, 2018 9:39 AM PT

After three months of investigation, police still don’t know why Stephen Paddock opened fire from the Mandalay Bay casino-hotel.

This October 2017 photo released by the Las Vegas Metropolitan Police Department Force Investigation Team Report showis the interior of Las Vegas shooter Stephen Paddock’s 32nd floor room of the Mandalay Bay hotel.

(Las Vegas Metropolitan Police Department / AP)

The Mandalay Bay resort and casino, right, overlooks an outdoor festival grounds across the street, left, Tuesday, Oct. 3, 2017, in Las Vegas. Authorities said Stephen Craig Paddock fired from a hotel window onto a crowd, killing dozens and injuring hundreds at a music festival.

(John Locher / AP)

This October 2017 photo released by the Las Vegas Metropolitan Police Department Force Investigation Team Report showing a small sledge hammer, broken glass and bullet casings inside the interior of Las Vegas shooter Stephen Paddock’s 32nd floor room of the Mandalay Bay hotel in Las Vegas.

(Las Vegas Metropolitan Police Department / AP)