FILE - In this undated file photo provided by the Arizona Department of Corrections, an unidentified Arizona Corrections Officer adjusts the straps on the gurney used for lethal injections at the Arizona State Prison at Florence, Ariz. The prolonged execution this week of an Arizona death row inmate with a new, two-drug combination highlights the patchwork approach states have been forced to take with lethal injection drugs, with the types, combinations and dosages varying widely. (AP Photo/Arizona Department of Corrections)

Arizona abandons use of sedative as a lethal-injection drug

Executions in Arizona were put on hold after the July 2014 death of convicted killer Joseph Rudolph Wood, who was given 15 doses of midazolam and a painkiller and who took nearly two hours to die. His attorney says the execution was botched.

FILE - In this Feb. 26, 2016 file photo the Flint Water Plant tower is seen in Flint Mich. Emails obtained by The Associated Press show EPA chief Gina McCarthy warned in September that the Flint water crisis could "get very big very quickly." McCarthy responded Sept. 26 to messages notifying her that the city's water had high levels of lead and that it had been detected in the blood of some children. McCarthy is scheduled to testify Thursday March 17, 2016 before a U.S. House committee looking into the matter. (AP Photo/Paul Sancya File)

Report: Lead levels higher in Flint kids after water switch

The Centers for Disease Control and Prevention’s report said the likelihood a child would have a concerning blood-lead level — at least 5 micrograms of lead per deciliter of blood — was about 50 percent higher after the April 2014 switch from Detroit’s water system to the Flint River.

Omar Mateen, 29, of Port St. Lucie, Florida, has been identified as the gunman who opened fire at Pulse nightclub in Orlando in what is now the worst mass shooting in U.S. history. (Courtesy: MySpace)

Officials: No evidence Orlando gunman was gay

The FBI began looking into that possibility after media reports last week quoted men as saying that Omar Mateen had reached out to them on gay dating apps and had frequented the gay nightclub where the June 12 massacre took place.

Protester Jonathan Brown stands outside a courthouse as a jury inside deliberates on the case of William Porter, one of six Baltimore city police officers charged in connection to the death of Freddie Gray, Tuesday, Dec. 15, 2015, in Baltimore. (AP Photo/Patrick Semansky)

Police driver acquitted in Freddie Gray case

25-year-old Freddie Gray was fatally injured after officers bound his hands and feet and Officer Caesar Goodson left him unprotected by a seat belt that prosecutors say would have kept him from slamming into the van’s metal walls.

In this frame grab taken from AP video Georgia Rep. John Lewis leads more than 200 Democrats in demanding a vote on measures to expand background checks and block gun purchases by some suspected terrorists in the aftermath of last week's massacre in Orlando, Florida, that killed 49 people in a gay nightclub.  Rebellious Democrats shut down the House's legislative work on Wednesday, June 22, 2016, staging a sit-in on the House floor and refusing to leave until they secured a vote on gun control measures before lawmakers' weeklong break.  (AP Photo)

House Dems, Republicans nearly come to blows during sit-in for gun control

More than 30 Democratic lawmakers, led by Rep. John Lewis (R-Ga.), seized the House floor today just before afternoon recess, demanding a vote on gun control legislation in the wake of mass shooting in Orlando, Fla. After C-SPAN feeds were cut, leaders took to social media to share the proceedings and their positions the issue at hand.