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Investigators load bodies from the scene of a mass shooting at a music festival near the Mandalay Bay resort and casino on the Las Vegas Strip. Photo: Chris Carlson / AP

Police say Stephen Paddock had about 23 firearms in his room at the Mandalay Bay Hotel, including handguns, hundreds of rounds of ammunition and at least 10 rifles, several of which had scopes.

They included high-powered rifles that are capable of penetrating police armor and a modified bump stock rifle, which allows a gun to simulate rapid automatic gunfire.

Paddock also had in his Mesquite, Nevada home, per Sheriff Joseph Lombardo:

  • 19 additional firearms
  • Explosives
  • Thousands of rounds of ammo
  • "Electronic devices," which Lombardo would not describe

Ammonium nitrate, a fertilizer that can be used in explosives, was also found in Paddock's car.

Why it might take a while to know exactly which weapons he used: The gun-tracing system in the U.S. relies on paper records, and even microfilm. The Bureau of Alcohol, Tobacco, Firearms and Explosives said it is conducting an "urgent trace on firearms" from the scene.

  • Two gun stores in Nevada where Paddock had made purchases in the last year said he passed the required background checks, per NBC News. It wasn't immediately clear if the guns he bought from these two stores were used in the massacre Sunday night, and while one store revealed he bought a rifle and a shotgun, the other store declined to share details about the sale.

These numbers have been updated to reflect the most recent count, per AP reporting

Go deeper

Reports: Trump DOJ subpoenaed Apple for records of WH counsel Don McGahn

Former White House counsel Don McGahn leaves Capitol Hill after a closed-door meeting with the House Judiciary Committee on June 4, 2021 in Washington, DC. Photo: Drew Angerer/Getty Images

Apple told former Trump administration White House counsel Don McGahn last month that the Department of Justice subpoenaed information about accounts of his in 2018, the New York Times first reported Sunday.

Why it matters: Although it's unclear why the DOJ took the action, such a move against a senior lawyer representing the presidency is highly unusual.

Updated 3 hours ago - Politics & Policy

First fatality confirmed in downtown Austin mass shooting

Police barricades near the scene of a shooting in Austin, Texas, on Saturday. Photo: Sergio Flores/Getty Images

A 25-year-old man died Sunday of injuries sustained in a mass shooting that wounded 13 other people in downtown Austin, Texas, the previous day, police confirmed.

Driving the news: Austin police named the victim as Douglas John Kantor, as they continued to search for one of two suspects. One suspect was taken into custody on Saturday following the shooting on 6th Street, a popular area with bars and restaurants.

Pelosi demands Barr and Sessions testify on data subpoenas

House Speaker Nancy Pelosi during an event San Francisco, California, on Friday. Photo: Miikka Skaffari/Getty Images

House Speaker Nancy Pelosi (D-Calif.) told CNN Sunday that former Attorneys General William Barr and Jeff Sessions should testify before Congress on reports that the Trump-era Department of Justice seized Democrats' and journalists' data records.

Driving the news: DOJ Inspector General Michael Horowitz announced Friday an internal investigation into the matter, and Pelosi expressed disbelief to CNN's Dana Bash at assertions that neither Barr nor Sessions knew of probes into lawmakers.