Facebook CEO Mark Zuckerberg surrounded by press photographers around the world before testifying at the US Senate Judiciary and Commerce Committees Joint Hearing on Capitol Hill in Washington D.C. on Apr 10, 2018. (Ting Shen/Xinhua)

DART (Dallas Area Rapid Transit) police Sgt. Homer Hutchins hugged DART Officer Shamika Sorrells in the hallway of Baylor University Hospital emergency room entrance on July 7, 2016 in Dallas, Texas.(Ting Shen/The Dallas Morning News)

A scar is seen on U.S. Senator John McCain's eyebrow as he leaves the Capitol following a procedural vote to open debate on the GOP heath care plan on Capitol Hill in Washington, D.C.,on Jul. 25, 2017. Senator McCain returned to the Capitol for the healthcare vote, after a brief absence recovering from a surgery to remove a blood clot in his forehead due to just-discovered glioblastoma. (Xinhua/Ting Shen)

Colin Williams of Elk Grove Village Highschool competes in the 100-yard Butterfly during the 2013 IHSA Boys Swimming State Finals at Evanston Township High School in Evanston, IL, United States on Mar. 1, 2014.

NATO Proteters clash with the police at E Cermack Rd. and S Michigan Ave. during the CANG8 March on Sunday, May 20th, 2012.

Yamna Goughbar, of Hurst, Texas, plays with the twins Joshua and Alexis Hern, 5, of Southlake, Texas, whom Goughbar nannies, during Stars & Stripes 2016 at Southlake Town Square on July 3, 2016 in Southlake, Texas. Goughbar became a U.S. citizen on July 2nd, after her 3rd attempt applyingx for the citizenship and being in the States for 18 years. She has been the nanny for the Hern's for the past 5 years and has become a part of the family. John and Sarah Hern are immigrants from the U.K. whom recently became citizens this past January.(Ting Shen/The Dallas Morning News)

Tear gas munitions are seen deployed by the police against demonstrators during riots after the grand jury decision was announced not to indict officer Darren Wilson for the killing of Michael Brown Jr., in Ferguson, Missouri, on Nov, 24, 2014.

Highland Park High School "Highland Bells" Drill Team Dancers Grace Dodd, Avery Penman, Sarah Fielder, and Caroline Walker enjoy a late night meal at In-N-Out Burger after a Friday night high school football game in Dallas on Oct. 14th, 2016. (Ting Shen/The Dallas Morning News)

Shantavia McIntosh, 26, of Mesquite, Texas holds her daughter Eden, 2, praying during a prayer vigil community meeting hosted by Dallas Area Interfaith at Southern Hills Church of Christ on July 10, 2016 in Dallas. (Ting Shen/The Dallas Morning News)

Community members of Washington, IL gather to lit up lanterns in memory of the ones who lost their lives during the November 17 tornado outbreak, at the send off ceremony for the moving art installation "Emotion In Motion" by Kristen Brown, on Monday afternoon, July 14, 2014.

Alen Hadzic of Columbia U. celebrates as he defeat Kristian Boyadzhiev of Ohio State, 15-14, advances to the Finals of mens Epée during Day 2 of the 2012 NCAA Fencing Championships held at Ohio State U., Columbus, OH, March 23, 2012.

Emergency response crew members examines the carnage left by a EF4 tornado passing by the evening before at the town of Fairdale, Illinois on Apr 10, 2015

Construction workers wielding gas axes dissecting the recently replaced old south section of the Wells Street Bridge for transport and recycling on Wacker and Wells, Chicago, IL , on Thursday, March 14, 2013.

Miami Heat forward Amar'e Stoudemire (5) blocks Milwaukee Bucks forward Jabari Parker (12) during the NBA regular season basketball game between the Miami Heat and Milwaukee Bucks at Bradley Center in Milwaukee, Wisconsin, United States of America on Jan, 29, 2016. Heat win 107-103. (Xinhua/Ting Shen)

Anne Norton, of El Paso, IL, a member of Barking Ballroom, kisses her Scottish Deer Hound, Badger after the performance at the Peoria Public Library North Branch on Sunday afternoon, June 22nd, 2014.

Remains of houses and property destroyed by a EF4 tornado under the moon light in the town of Washington, Ill., on Nov. 17, 2013.

John Arnoult(left), 6 of Jonesboro, AR, and Victoria Dubberstine(center), 6, of Spring Valley competes in the spaghetti eating contest during the Italian Fest at Hickory Grove Park, Dunlap, IL on Sunday afternoon, Aug 10, 2014

People looting the local business Ferguson Market & Liquor during riots after the grand jury decision was announced not to indict officer Darren Wilson for the killing of Michael Brown Jr., in Ferguson, Missouri, on Nov, 24, 2014.

Timber Rattlers baserunner Johnny Davis gets tagged out at the 2nd base by Chiefs shortstop Cesar Valera during the baseball against the Wisconsin Timber Ratters at Dozer Park on Sunday afternoon.

Broderick Meyers kisses his fiancé Alana Toulin in celebration Meyers proposed right after the Chicago Blackhawks wins the 2015 Stanley Cup Final at United Center in Chicago, Ill,on Jun, 15, 2015.

Ken Sharp, 42, of Team Outdoors Experience, hits a Asian carp that has just been caught with a bow during the Peoria Flying Fish Festival & Bow Fishing Tournament on the Illinois River, on Saturday morning. Team Outdoors Experience end up finishing 4th in the bow fishing tournament.

Michigan Wolverines safety Jordan Kovacs (11) breaks up reception by Northwestern Wildcats tight end Dan Vitale (40) during the 1st quarter of the Northwestern vs Michigan college football game, at Ann Arbor, MI, on Saturday, Nov 10, 2012

Firefighters extinguish a car fire on the Dan Ryan Expressway ,at I-90 and Roosevelt Rd., in Chicago, IL on Tuesday, March 26, 2013.

U.S. Navy Blue Angels F/A-18 Hornets fly pass each other traveling in opposite directions at low altitude, over boats on Lake Michigan during the Chicago Air and Water Show at North Avenue Beach. August 18, 2012