Some clues are emerging in Las Vegas on the suspect linked to the shooting rampage at an office building in Manhattan where four died. CBS News' Tom Hanson reports.

Las Vegas

Authorities in New York and Las Vegas are working together to investigate a shooting incident in New York, with the suspect, Shane Tamora, reportedly having purchased the firearm from a work supervisor in Las Vegas. Investigators have searched Tamora's apartment, finding items including a rifle tripod, 100 rounds of 9mm ammunition, and medications such as antipsychotics.

A letter from Tamora referenced chronic traumatic encephalopathy (CTE) and blamed the NFL for his mental health issues, citing his history as a high school football player. Authorities are still determining the legality of the firearm sale and the motive for the attack, while funerals are being held for the victims, including a business executive and an NYPD officer who was posthumously promoted to detective.

Officials in Las Vegas seek answers on NYC shooting rampage

Yeah, well, here in New York, authorities are now saying that the gunman who carried out Monday's attack actually purchased the gun believed to be used in this attack from a work supervisor. NYPD is working in tandem with federal agents from ATF. They are searching the apartment of 27-year-old Shane Tamora in Las Vegas. They're hoping to piece together a timeline of any potential gun purchases, a timeline of mental health issues, and of course, they are looking for a motive. But here's what they've found so far in their investigation. They say that they have found a tripod intended to be used with a rifle. They have found 100 rounds of 9mm live fire. And they have found a number of medications, including antipsychotics. Now that still leaves the question of a motive. We are waiting on the investigation to wrap up in order to conclude what caused Tamora to drive all the way from Las Vegas to New York to carry out this shooting. In a letter obtained by CBS News from Tamora, he references chronic traumatic encephalopathy or CTE. He was a former football player in high school and he reportedly blames the NFL for his mental health issues. Now, in another twist, the authorities on the ground in Las Vegas reportedly spoke with that supervisor, a man by the name of Ricky Ackley. He says that he sold Tamora the firearm used in this attack for $1,400. There's no word yet on whether or not that was a legal sale. As we look ahead to today, we have a number of funerals. One for Wesley La Patner, the executive who was shot in this building, and also a mother. The other one is for the fallen NYPD officer, Dideral Islam. He was also a father. He was actually expecting a child in just a matter of weeks. His third child, NYPD, has posthumously promoted him to detective.

Japan has commemorated the 80th anniversary of the Hiroshima atomic bombing during World War II. Ceremonies at Peace Memorial Park honoured the victims of the 1945 nuclear attack by US forces.

Hiroshima

Japan’s Hiroshima marks 80 years since U.S. atomic bombing

Multiple media outlets in Israel have reported that Israeli Prime Minister Benjamin Netanyahu wants a complete military takeover of Gaza, while almost 600 former Israeli military and security officials are petitioning Washington to stop the fighting.

Jerusalem

Middle East Conflict

Netanyahu reportedly wants complete Gaza takeover

Ukrainian President Volodymyr Zelenskyy said Tuesday that he had a productive talk with President Trump focused on ending the war with Russia. CBS News national security contributor Samantha Vinograd has more.

Kyiv

Ukraine Invasion

Zelenskyy holds 'productive talks' with Trump about war

Family members of two of the victims from the 2023 implosion are demanding tougher regulations following the damning report released on Tuesday. Five people died when the submersible imploded off the coast of Newfoundland.

Washington

Deadly Titan submersible disaster was preventable, Coast Guard says

The House Oversight Committee has subpoenaed multiple people over the Jeffrey Epstein files, including former President Bill Clinton and former Secretary of State Hillary Clinton. CBS News' Jake Rosen has more details.

House committee subpoenas Clintons, others over Epstein files

U.S. Customs and Border Patrol agents have been directed through a federal court order to stop deportations under President Trump's asylum ban, sources say. CBS News' Camilo Montoya-Galvez has more details.

Court blocks deportations under Trump's asylum ban, sources say

A man suspected of murdering four family members in Tennessee has been captured after a four-day manhunt, authorities said. CBS News' Nicole Valdes has more.

Jackson

Suspect arrested in murders of 4 Tennessee family members

The ruling comes a month after Brazil’s top court ordered the former president to wear an ankle monitor, submit to a curfew and abide by limitations on his activity as legal proceedings investigating an alleged coup plot continue.

State of Rio de Janeiro

Brazil's Supreme Court orders house arrest of Bolsonaro

The US and Lebanon have been holding talks on a roadmap to fully disarm Hezbollah. Lebanon's new leadership has pledged to extend its authority across all its territory but has so far avoided acting against Hezbollah.

Beirut

Lebanon faces renewed pressure to disarm Hezbollah

CBC News had exclusive access to a Canadian Armed Forces plane that dropped about 10,000 kilograms of humanitarian aid into Gaza, the first time Canada joined the airdrop operations. Several countries airdropped food on Monday, but aid organizations agree they are more symbolic than effective.

Ottawa

Canadian military makes aid drop into Gaza

The Prime Minister's Office said to the Chief of Staff, Lieutenant General Eyal Zamir that, "If this does not suit him, you should resign."

Israel's Netanyahu says decision made for full occupation of Gaza

Delegates are gathering this week at the United Nations in Geneva, attempting to negotiate a global treaty to curb plastic pollution. But diplomats and climate advocates warn that efforts by the European Union and small island states to cap virgin plastic production are threatened by opposition.

Geneva

Strong UN treaty on plastic pollution in doubt as talks resume

President Trump announced Friday on social media that he ordered two nuclear submarines to move into more strategic positions near Russia. On Monday, Russian officials downplayed the comments and warned about the risk of nuclear rhetoric.

Moscow

Russia downplays Trump's announcement about nuclear submarines

U.S. trade representative Jamieson Greer told "Face the Nation" that tariff rates are "pretty much set" ahead of President Trump's Aug. 7 deadline. CBS News MoneyWatch correspondent Kelly O'Grady has the latest.

Global Tariffs

White House holds firm on tariff rates ahead on Aug. 7 deadline

Donald Trump confirmed his special envoy Steve Witkoff will visit Russia, ahead of a deadline the U.S. president has set for Russia to agree to end the Ukraine war or face new sanctions. Witkoff is expected in Moscow in the middle of this week.

U.S. envoy Steve Witkoff expected to visit Russia

New images of emaciated Israeli hostages held in Gaza have horrified Israelis and added pressure on Prime Minister Benjamin Netanyahu to reach a ceasefire with Hamas, even as his government considers another expansion of the nearly 22-month war.

Tel Aviv-Yafo

Videos of hostages increase pressure on Netanyahu for ceasefire

Pope Leo XIV wrapped up a weekend jubilee for more than 1 million young Catholics at a Rome suburb. As a new generation from around the globe celebrated, the pope drew attention to their peers in Ukraine and Gaza who cannot.

Rome

Pope Leo XIV addresses Gaza, Ukraine at youth festival

A shipwreck off Yemen has killed at least 68 people, the UN's migration agency said, with dozens still missing after the boat carrying mostly Ethiopians sank.

Sana'a

Migrant boat sinks off Yemen, killing at least 68

After two unverified videos of Israeli hostages were released, Hamas said the hunger crisis in the region puts them at risk. The militant group said it would deliver food from the Red Cross to the hostages under a couple of conditions, including permanent humanitarian corridors.

Hamas says hunger crisis putting hostages at risk

U.S. President Donald Trump fired the U.S. commissioner of labour statistics after weak jobs numbers signaled tariffs weren’t yet leading to his promised economic boom.

Trump dismisses weak jobs numbers, fires labour statistics chief

Government scientists warn that the 2025 wildfire season in North America is projected to be the longest ever, with fires already causing significant damage across the western United States and Canada. Major blazes have led to evacuations, destruction of historic sites, and widespread air quality alerts.

Santa Barbara

Wildfire season in North America shaping as worst on record

A volcano in Russia's Far East has erupted after sitting dormant for 600 years. Scientists believe the eruption was triggered by the massive earthquake that struck the region last week.

Kamchatka Peninsula

Russian volcano erupts for first time in 600 years

An independent watchdog agency responsible for enforcing a law against partisan political activity by federal employees has opened an investigation into Jack Smith, the special counsel who brought two criminal cases against Donald Trump before his election to the White House last year.

Former Trump prosecutor Jack Smith faces probe by U.S. watchdog

New outbreaks of violence overnight into Sunday (August 3) rocked Syria straining a fragile ceasefire. Meanwhile residents in Sweida are calling access to more humanitarian aid.

As Suwayda

Humanitarian needs escalate in Sweida as truce frays

Parts of the European Commission's much-anticipated AI Act come into force this weekend. It's been hailed as the first piece of comprehensive legislation aimed at regulating AI globally, though critics say it doesn't go far enough.

Brussels

Rise of AI

EU's landmark AI act enters new phase

A Ukrainian lawmaker and a pair of local officials, as well as an unspecified number of National Guard personnel, have been caught in a major graft scheme that involved using state funds to buy drones and other military hardware at deliberately inflated prices in return for bribes.

Ukraine uncovers major drone procurement graft scheme

Over the past few days, Hamas and its ally Islamic Jihad have released three videos showing two hostages seized during the October 7, 2023, attack on Israel that triggered the ongoing war in Gaza. The videos sparked reactions from Israelis who are stepping up calls for a truce.

Israeli hostage families protest in Tel Aviv

Pope Leo XIV celebrated the concluding mass of one of the most important events of the Holy Year. A million faithful filled the Tor Vergata esplanade in Rome. Pope Leo sent a message of hope for the young people afflicted by wars and recalled the words of his predecessor.

Pope Leo urges Catholic youth to spread faith and enthusiasm

President Trump explained why he fired Bureau of Labor Statistics Commissioner Erika McEntarfer on Friday. Government data showed fewer jobs were added to the U.S. economy last month than expected.

Trump announces new tariff rates, fires employment commissioner

Former Special Counsel Jack Smith, who ran two federal prosecutions of President Trump, is under investigation for allegedly violating a law barring federal employees from using their position to influence elections.

Breakdown