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Show It All: Charting the Week's Top Stories

More than 30 were killed in terror attacks in Brussels and other big stories we followed this week — in the form of five charts.
Image: Brussels terror attacks aftermath
People gather and pay tribute to the many people killed and injured in multiple terrorist attacks accross Brussels on 22 March, at Place de la Bourse, in Brussels, Belgium, on March 24, 2016. At least 31 people were killed with hundreds injured in terror attacks in Brussels, Belgium on 22 March. Islamic State (IS) has claimed responsibility for the attacks.JULIEN WARNAND / EPA

More than 30 people were killed in terror attacks in Brussels early this week following the detention of a suspect in November's attacks in Paris. Later in the week, U.S. defense officials announced that ISIS' finance minister Haji Iman was killed during an operation.

Here's a look back at those stories and other top news — in the form of five charts:

At Least 31 Dead in Brussels Terror Attacks

Two explosions at the Brussels Airport and one at a metro station left at least 31 people dead and more than 270 injured on Tuesday. ISIS claimed responsibility for the attacks. One of three suicide bombers who blew himself up in the attack was the suspected bomb-maker involved in November's Paris attacks, Belgian officials announced on Friday. Two suspects who are thought to be alive are also thought to have been involved in the Nov. 13 massacres in Paris. One, Mohamed Abrini was filmed on security footage at a gas station with Salah Abdeslam, who is one of the alleged Paris attackers, just two days before the massacres. Abdeslam was captured on March 18.

Obama Makes Historic Trip to Cuba

President Barack Obama said Tuesday that he was hopeful the U.S. and Cuba will someday end their long estrangement — and that the island nation will be free of a decades-old economic embargo — despite their long history of differences and disagreements. "I have come here to bury the last remnant of the Cold War in the Americas," Obama said in an speech, delivered during a historic three-day visit to Cuba, where he has pressed the Castro regime to speed up economic reforms and improve its human rights record.

Tuesday's Primaries and Caucuses Split Among Candidates

Tuesday's primaries and caucuses were a mixed bag as Sen. Bernie Sanders took two states — Idaho and Utah — to Hillary Clinton's lone win in Arizona, and Donald Trump and Sen. Ted Cruz split the Republican races in Arizona and Utah respectively. The western state primaries represented another step in efforts to amass support in the race to the nomination, with both Trump and Clinton hoping that they may tally an outright majority of their party's respective delegates before the summer conventions get contentious.

Bronx Man with 13 Alibi Witnesses Freed After Serving 20 Years

For the first time in two decades, Richard Rosario was able to step out of a courthouse and walk freely with his family into the city in which he'd grown up. Rosario was 20 years into a 25-to-life sentence for the 1996 murder of George Collazo in the Bronx, even though he insists he was 1,000 miles away in Florida on the day of the crime. At least 13 alibi witnesses back up Rosario's story. But the district attorney did not ask that the charges against Rosario be dropped, and he still faces the possibility of a retrial while the DA's office continues to look into the case. Dateline has documented Rosario's story in a first of its kind web series.

ISIS' Finance Minister, Haji Imam, Killed

ISIS' finance minister was killed during an operation this week, defense officials announced Friday, a major score for the U.S.-led coalition as it tries to erode the terror group's grip on the region. In addition to the death of Haji Iman, the Pentagon confirmed the killing of another top leader — Omar al-Shishani — in an earlier operation. "Striking leadership is necessary, but it's far from efficient," Defense Secretary Ash Carter said at a news conference, adding that the U.S. is "systematically eliminating" ISIS' cabinet.