A woman stands near a banner featuring councilwoman Marielle Franco at the entrance of City Hall where thousands have gathered to pay their respects to the slain 38-year-old and her driver Anderson Pedro Gomes who were both gunned down the night before by two unidentified attackers, in Rio de Janeiro, Brazil, Thursday, March 15, 2018. (Photo by Leo Correa/AP Photo)





Young dancers participate in a performance during a ceremony to remember victims of My Lai massacre in My Lai, Vietnam Friday, March 16, 2018. More than a thousand people attend the commemoration marking the 50th anniversary of the My Lai massacre in which 504 unarmed civilians, most of them women, children and the elderly. (Photo by Hau Dinh/AP Photo)





Graffiti sprayed on the pavement near the entrance to the Russian embassy and ambassador's residence in London, Britain, March 15, 2018. (Photo by Hannah McKay/Reuters)





Skiers compete on March 14, 2018 during the first stage of the 33rd edition of the Pierra Menta ski mountaineering competition in Areches-Beaufort, France. (Photo by Jeff Pachoud/AFP Photo)





In this October 1, 2011 file photo, Chinese paramilitary police march during a flag raising ceremony near the Potala Palace in Lhasa in western China's Tibet Autonomous Region. Tibetan activists, housing petitioners and other campaigners are targets of a new national campaign in China against so-called organized crime. The sweep expands the range of people law enforcement officials can take into custody in the name of preserving peace and order. Analysts say the crackdown will help President Xi Jinping win political support in counties and villages, boosting his legitimacy as he prepares to rule the country indefinitely. (Photo by Color China Photo via AP Photo)





Children place Teddy bears on the stairs of the Concert Hall during “Teddy Bear action: Beyond Survival”, organized by World Vision, in Berlin, Germany on March 15, 2018. World Vision aims to draw attention on the newly issued report “Beyond Survival” on Syrian Children suffering the war. (Photo by Michele Tantussi/Anadolu Agency/Getty Images)





Emergency personnel works on a collapsed pedestrian bridge on the Florida International University in Miami, Florida, USA on 15 March 2018. A recently installed pedestrian bridge at Florida International University west of Miami collapsed, crushing several cars on a state highway and injuring multiple people, according to police. (Photo by Giorgio Viera/EPA/EFE)





In this Friday, September 22, 2017 file photo, Claudia Shiffer, Donatella Versace, Naomi Campbell, Cindy Crawford and Helena Christensen on the catwalk at the end of the Versace women's Spring/Summer 2018 fashion collection, presented in Milan, Italy. Versace has become the latest fashion house to eliminate fur from its collections, joining Gucci, Giorgio Arman, Hugo Boss among others. (Photo by Luca Bruno/AP Photo)





Supporters of Russian President Vladimir Putin gather for a rally to celebrate the fourth anniversary of Russia's annexation of Crimea at Sevastopol's Nakhimov Square on March 14, 2018. Russia will vote for President on March 18, 2018. (Photo by Yuri Kadobnov/AFP Photo)





Russian honour guards march during the changing of the guards ceremony at the Tomb of the Unknown Soldier by the Kremlin wall in Moscow on March 15, 2018. Russia will vote for President on March 18. (Photo by Mladen Antonov/AFP Photo)





“Ninots” or wooden sculptures depicting (L to R) Russian President Vladimir Putin during final preparations in Valencia, Spain, 15 March 2018. Las Fallas is a festival held in Valencia region annually from 15 to 19 March to mark San Jose, the patron of carpenters. The fallas, an installation of parodic huge papier-mache, cardboard and wooden sculptures, are burned on 19 March to end the event. (Photo by Juan Carlos Cardenas/EPA/EFE)





Swiss artiste Chanel Marie Knie with her llamas act during her performance at the final rehearsal of Circus Knie in Rapperswil, Switzerland, 15 March 2018. On their 100th tour, titled “Formidable”, the Knie family will perform together with 38 artists from ten different nations. (Photo by Melanie Duchene/EPA/EFE)





Masked Palestinian demonstrators hide behind a metal plate during clashes with Israeli soldiers on March 12, 2018 in the West Bank town of Birzeit, near Ramallah, following a protest by students of the Birzeit University against the arrest of the the head of Palestinian student council by an Israeli undercover commando. (Photo by Abbas Momani/AFP Photo)





A Palestinian paramedic rushing to help an injured protester is blocked by Israeli border policemen trying to arrest the injured man, during clashes with Israeli troops, at the northern entrance of the West Bank city of Ramallah, Monday, March 12, 2018. The student council of the Palestinian Bir Zeit University announced a one day suspension of classes at the campus and called for students to rally and clash with Israeli soldiers at a security checkpoint near the settlement of Beit El, to protest the arrest of the head of the student council by Israeli troops last week. (Photo by Nasser Nasser/AP Photo)





High school senior D'Angelo McDade, front right, leads a march in Chicago's North Lawndale neighborhood during a walkout to protest gun violence, Wednesday, March 14, 2018. About 200 students joined Wednesday's march as a sign of solidarity with students at Marjory Stoneman Douglas High School in Parkland, Fla., the scene of a recent school shooting in Florida in which 17 students and educators died. (Photo by Martha Irvine/AP Photo)





A man crawls under tires during the Mud Run, a 10 kilometers obstacle course in Tel Aviv, Israel, Friday, March 16, 2018. (Photo by Ariel Schalit/AP Photo)





Participants take part in the Mud Day race, a 13 km obstacle course, on March 16, 2018 in the Israeli Mediterranean coastal city of Tel Aviv. (Photo by Jack Guez/AFP Photo)





Participants take part in a parade ahead of the “Day of Silence” in Denpasar on Indonesia' s resort island of Bali on March 16, 2018. The predominantly Hindu island of Bali in Indonesia, the world' s largest Muslim- populated nation, will celebrate the “Day of Silence”, locally known as Nyepi, on March 17. (Photo by Sonny Tumbelaka/AFP Photo)





A file photo taken on November 16, 2017 shows animals' skeletons displayed at the comparative anatomy gallery of the French museum of Natural History, in Paris. Earth is enduring a mass species extinction, scientists say – the first since the demise of the dinosaurs and only the sixth in half- a-billion years. The reason? Humanity' s voracious consumption, and wanton destruction, of the very gifts of Nature that keep us alive and healthy. Starting on March 17, 2018, a comprehensive, global appraisal of the damage, and what can be done to reverse it, will be conducted in Colombia. (Photo by Martin Bureau/AFP Photo)





Visitors watch the upside down hanging sculpture of the Matterhorn mountain at the exhibition “The Call of the Mountains” in the Gasometer in Oberhausen, Germany, Thursday, March 15, 2018. The highlight of the exhibition in the 100 m high space within the former Gas cylinder is a monumental sculpture of the Matterhorn using 3D technology to show moving images as the mountain changes from day to day and season to season. (Photo by Martin Meissner/AP Photo)





Syrians children evacuated from the Eastern Ghouta enclave pause as other civilians approaching them walk through the regime- controlled corridor opened by government forces in Hawsh al- Ashaari, east of the enclave town of Hamouria on the outskirts of the capital Damascus on March 15, 2018. Thousands escaped Syria' s rebel- held Eastern Ghouta into government- held territory AFP correspondents on both sides said, the largest numbers since the regime assault on the enclave began. (Photo by Louai Beshara/AFP Photo)





A Syrians girl and boy from the Eastern Ghouta enclave walk with another woman and civilians through the regime-controlled corridor opened by government forces in Hawsh al-Ashaari, east of the enclave town of Hamouria on the outskirts of the capital Damascus on March 15, 2018. Thousands escaped Syria's rebel-held Eastern Ghouta into government-held territory AFP correspondents on both sides said, the largest numbers since the regime assault on the enclave began. (Photo by Louai Beshara/AFP Photo)





Approximately seven thousand pairs of shoes representing lost children to guns since the 14 December 2012 shooting at Sandy Hook Elementary School in Newtown, Connecticut, are seen on the East Front of the US Capitol in Washington, DC, USA, 13 March 2018. The 14 February shooting at Marjory Stoneman Douglas High School in Parkland, Florida, was the 17th school shooting in the US in 2018. (Photo by Michael Reynolds/EPA/EFE)





Pedestrian use a metal fence to cross, as they wade through the flooded road on their way to work following heavy rainfall, on March 15, 2018 in Nairobi, Kenya. (Photo by Simon Maina/AFP Photo)





(L-R) SiriusXM host Jenny McCarthy celebrates St. Patrick's Day in Times Square with the Naked Cowboy on her exclusive SiriusXM Show “The Jenny McCarthy Show” on March 14, 2018 in New York City. (Photo by Astrid Stawiarz/Getty Images for SiriusXM)





Lorde performs onstage at Staples Center on March 14, 2018 in Los Angeles, California. (Photo by Kevin Winter/Getty Images for Lorde)