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.

Trump administration special envoy Steve Witkoff will visit Gaza with U.S. Ambassador to Israel Mike Huckabee to assess claims of starvation in the enclave at the center of Israel's war against Hamas.

Jerusalem

Middle East Conflict

U.S. officials to visit Gaza amid starvation, genocide accusations

The announcement comes as international pressure mounts on Israel over the war in Gaza and the deepening humanitarian crisis in the Palestinian enclave.

Ljubljana

Slovenia becomes first EU country to ban arms trade with Israel

The United States imposed sanctions on Palestinian Authority officials just as other nations are stressing the importance of the PA in governing Gaza in the event of an end to the devastating war in the enclave.

New York

U.S. sanctions Palestinian Authority in growing diplomatic rift

Ukraine’s Parliament has reversed a controversial law signed last week by President Volodymyr Zelenskyy, which would have allowed the government greater control over anti-corruption agencies. The decision comes as the country faces one of its most significant political crises since Russia’s full-scale invasion in 2022.

Kyiv

Ukraine Invasion

Ukraine parliament reverses bill on anti-corruption agencies amid crisis

U.S. President Donald Trump has signed an executive order increasing tariffs on Canadian goods that don't meet the terms of the Canada-U.S.-Mexico Agreement to 35 per cent.

Ottawa

Global Tariffs

Trump raises Canada tariff to 35%, grants extension to Mexico

U.S. special envoy Steve Witkoff met Israeli Prime Minister Benjamin Netanyahu on July 31 in a bid to salvage Gaza truce talks and tackle a humanitarian crisis in the enclave, where a global hunger monitor has warned that famine is unfolding.

Trump's envoy meets Netanyahu for Gaza aid, ceasefire push

U.S. special envoy Steve Witkoff is visiting Israel as more countries join the call to recognize a Palestinian state in September. CBS News' Robert Berger has the latest.

Trump envoy in Israel as Canada joins call on Palestinian statehood

President Donald Trump says the U.S. will charge a 15% tariff on imports from South Korea as part of a deal that eases, for now, tension with a top-10 trading partner and key Asian ally.

Washington

Trump says U.S. will set 15% tariff on South Korean imports

U.S. President Donald Trump slapped a 50% tariff on most Brazilian goods to fight what he has called a "witch hunt" against former President Jair Bolsonaro, but softened the blow by excluding sectors such as aircraft, energy and orange juice from heavier levies.

Rio de Janeiro

Trump hits Brazil with tariffs, sanctions but key sectors excluded

Widespread damage from tsunami waves after one of the strongest earthquakes ever recorded appears to have been largely avoided. Experts say this event should be used to gauge disaster preparedness for a more serious situation in the future.

Okinawa

Tsunami damage less severe than feared after Russian earthquake

Prime Minister Mark Carney announced that Canada will recognize a Palestinian state later this year if the Palestinian Authority, which governs parts of the West Bank, meets certain conditions.

Canada to recognize Palestinian state in September if conditions met

Australia said on Wednesday (July 30) it will add YouTube to sites covered by its world-first ban on social media for teenagers, reversing an earlier decision to exempt the Alphabet-owned video-sharing site and potentially setting up a legal challenge.

Canberra

Australia expands teen social media ban to YouTube

President Donald Trump said on Wednesday (July 30) the United States will impose a 25% tariff on goods imported from India, as well as an unspecified penalty for buying Russian weapons and oil, on Aug. 1.

Trump says U.S. to hit India with 25% tariff starting August 1

Mourners flooded the streets of Birmingham to celebrate the life of rock-and-roll legend Ozzy Osbourne during his funeral procession in the United Kingdom. Mark Savage, a music reporter at the BBC, a CBS News partner, joins with more details.

Birmingham

Ozzy Osbourne fans flood Birmingham streets to mourn late music icon

U.S. President Donald Trump told reporters before departing from Scotland that Jeffrey Epstein poached workers from his Mar-a-Lago spa. Trump mentioned Virginia Giuffre, one of Epstein's most vocal accusers, in his latest remarks.

Trump says Epstein 'stole' young women from Mar-a-Lago spa

Owdeh Hathaleen, a 31-year‑old Palestinian activist, teacher, and filmmaker behind the Oscar-winning documentary No Other Land, was shot dead by an Israeli settler near the village of Umm al‑Khair in the South Hebron Hills.

Palestinian activist killed by Israeli settler in West Bank

A powerful magnitude 8.8 earthquake off Russia's Far Eastern Kamchatka Peninsula triggered tsunami waves of up to 16 feet nearby, and sparked evacuation orders in Japan, Hawaii and across the Pacific on Wednesday (July 30).

Hawaii

Tsunami reaches Hawaii after huge quake shakes Russia's Far East

The U.N. General Assembly brought high-level officials together to promote a two-state solution to the decades-old Israel-Palestinian conflict. Israel and the United States are boycotting the two-day meeting, co-chaired by the foreign ministers of France and Saudi Arabia

Israel and U.S. boycott UN Summit for two-state solution

With numerous countries facing an Aug. 1 trade agreement deadline, officials in the Trump administration say China could get an extension while negotiations continue.

Trump officials suggest potential tariff truce with China

Police say the man who shot and killed four people in a New York City office building before he took his own life had a "documented mental health history." Mayor Eric Adams says he may have been targeting the National Football League (NFL).

Manhattan gunman had 'documented mental health history'

Jeffrey Epstein-associate Ghislaine Maxwell is offering to testify before Congress in exchange for concessions like full immunity. CBS News Department of Justice reporter Jake Rosen has more.

Ghislaine Maxwell offers to testify before Congress

Prime Minister Keir Starmer said on Tuesday (July 29) Britain was prepared to recognize a Palestinian state in September at the United Nations General Assembly unless Israel takes a number of steps to improve life for Palestinians.

London

UK to recognize Palestinian state unless Israel takes action

Russia launched overnight air strikes on over 70 Ukrainian cities, killing more than 20 people, according to President Zelenskyy. A pregnant woman died near a hospital in the southeast, while a prison strike killed at least 17.

Deadly Russian air raids hit Ukraine as Trump warns of sanctions

For the first time, human rights groups inside Israel are accusing their own government of committing genocide in Gaza. Israel insists it is targeting Hamas, not civilians—despite nearly 60,000 Palestinian deaths since the war began almost two years ago.

Rights groups in Israel accuse country of genocide

As Gaza’s crisis worsens, France is advocating for a two-state solution at a UN conference co-chaired by the French foreign minister. The meeting follows President Macron’s announcement that France will formally recognize a Palestinian state in September.

France leads UN talks on Israel-Palestine two-state solution

Former Colombian President Álvaro Uribe was found guilty of bribery and witness tampering in an unprecedented trial that has shaken the country.

Bogotá

Ex-Colombian president Uribe convicted of witness tampering, bribery

Russian Security Council Deputy Chairman Dmitry Medvedev posted on social media that President Trump's deadline push for a ceasefire with Ukraine is "a threat and a step towards war."

Moscow

Russian official calls Trump's ceasefire deadline 'a threat'

Ukraine says Russia's overnight air strikes hit a prison in Zaporizhzhia in the southeast, killing at least 17 people. Another 35 were injured. Authorities say the attacks destroyed the jail buildings and damaged several nearby houses.

Zaporizhzhia

Russian air strikes hit a prison in Ukraine's Zaporizhzhia, 17 killed

Russia launched yet another attack on Ukraine overnight, with more than 300 drones and seven missiles. While most of the barrage was intercepted, the attacks prompted President Trump to give his Russian counterpart an ultimatum.

Trump gives Putin new deadline to end Ukraine war

A gunman killed at least one police officer and shot a handful of other people Monday in the heart of New York City. CBS News New York has the latest details.

Breakdown