Three nominees for each of the eight photo contest categories, and – for the first time – a shortlist of six nominees for the World Press Photo of the Year.
The Shooting, Hunting, Outdoor Trade (SHOT) Show is being held at the Sands Expo and Convention Centre, a nine-minute drive away from the Mandalay Bay resort.
Arrest came months after Stephen Paddock masacred 58 people from the 32nd floor of the Mandalay Bay hotel in Las Vegas.
The suspect opened fire on two security guards at Arizona Charlie's Decatur Hotel and Casino in the early hours of Saturday (30 December) morning.
The US president seemed to be confused as he tweeted his condolences about the wrong shooting incident.
George Ciccariello-Maher, from Drexel University, had earlier blamed "Trumpism" for Las Vegas shooting.
Bruce Paddock, younger brother of Stephen Paddock, was taken into custody in North Hollywood, California, assisted living home on Wednesday (25 October).
Jesus Campos told Ellen DeGeneres on her talk show that he was heading down the hall after calling for a maintenance worker when he heard "rapid fire" gunshots through the nearby doors of Stephen Paddock's suite in the Mandalay Bay.
Investigators say Stephen Paddock, who massacred 58 people from his hotel room on the 32nd floor of the Mandalay Bay, before turning a gun on himself, targeted jet fuel tanks.
When app company Ibotta discovered that Victor Casillas' referrals were actually just duplicate accounts set up in his own name, they blocked his account and offered him $40.
Oasis Church of All Nations giving away same type of gun used to kill dozens in Las Vegas massacre as prize outside local Walmart.
It was not immediately clear why the timeline of the shooting changed a week later and what the impact could be on the investigation.
The video-sharing site has expanded its existing policy against "harmful and dangerous content" to take down such videos.
Charges come as US still reeling from Las Vegas mass shooting, which resulted in 58 deaths after gunman opened fire on concertgoers from a hotel room across the street.
Officers who raided his hotel room found dozens of weapons and a detailed targeting note.
The 27-year-old escort told The Sun on Sunday that she was hired by Paddock several times between November 2015 and June 2016 and that they stayed in the Mandalay Bay hotel.
Police have followed up more than 1,000 leads following the attack that left 58 people dead and 500 injured.
Las Vegas gunman Stephen Paddock booked hotels overlooking two other music festivals it emerged, while his girlfriend reportedly claimed he suffered from mental health symptoms.
Officers arrested 28-year-old Alexander Barowski after finding a handgun, parts of an AR-15 rifle, ammunition and body armour in his truck.
Police in Las Vegas questioned whether one person would have been able to carry out such a complex attack.
Canadian Braden Matejka was one of more than 500 injured in the Las Vegas mass shooting, carried out by retired accountant Stephen Paddock.
Photo emerges of a heavily damaged Apple smartphone that reportedly blocked a potentially fatal gunshot.
Michael Gracia and his fiancee were attending the country music festival when the attack began, wounding them both.
Video of Thomas Gunderson greeting Donald Trump, forcing himself out of his hospital bed where he is being treated for a wound sustained in the Las Vegas shooting, has gone viral.
Stephen Paddock killed 59 people and injured hundreds more as he opened fire on a crowd during a country music festival on 1 October.
Danley was in the Philippines when Paddock slaughtered a crowd of people on the Las Vegas Strip from his hotel room at the Mandalay Bay.
There will be more Stephen Paddocks in the US. More mass shootings like Las Vegas. More dead bodies. The American system is a disgrace and nothing is learnt, nothing changes.
"The real miracle will be if gun laws are ever passed to stop this from happening again," one Twitter user wrote.
Marilou Danley was abroad when her boyfriend killed 59 people and injured hundreds more as he opened fire on a crowd during a country music festival in Las Vegas on 1 October.
Las Vegas shooter attached $200 device to at least one of his weapons so that it could fire continuously.